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Electronic Telegram No. 3352


Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge,MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2012hv in NGC 4681.
R. Antezana, P. Sanchez, M. Hamuy, L. Gonzalez, R. Cartier, F. Forster, S. Silva, F. Carrasco, C. Hervias, and R. Ramirez, Universidad de Chile; G. Pignata, M. Cifuentes, and Y. Apostolovski, Universidad Andres Bello; F. Aros, Pontificia Universidad Catolica de Chile; B. Conuel, Wesleyan University; G. Folatelli, IPMU, University of Tokyo; and D. Reichart, K. Ivarsen, J. Haislip, A. Crain, D. Foster, M. Nysewander, and A. LaCluyze, University of North Carolina at Chapel Hill, on behalf of the CHASE project (which is part of the Millennium Center for Supernova Science collaboration), report the discovery of an apparent supernova (mag approximately 16.1) on an unfiltered image taken on Dec. 16.32 UT with the 0.41-m 'PROMPT 5' telescope located at Cerro Tololo. The new object is located at R.A. = 12h47m29s.30 +/- 0".2, Decl. = -43o19'44".3 +/- 0".2 (equinox 2000.0), which is about 5".5 east and 21".2 north of the center of the galaxy NGC 4681. Nothing is visible at this position on archival images taken on July 8.10 (limiting mag 18.5). The variable was designated PSN J12472930-4319443 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2012hv based on the spectroscopic confirmation reported below. Joseph Brimacombe, Cairns, Australia, writes that a stacked image of 2012hv taken with a 41-cm RCOS telescope (+ infrared filter; bandpass > 700 nm) yields mag 16.9 and position end figures 29s.28, 44".0; his image is posted at the following website URL: http://www.flickr.com/photos/43846774@N02/8293368430/.

D. Milisavljevic, Harvard-Smithsonian Center for Astrophysics; R. Fesen, Dartmouth College; T. Pickering, A. Kniazev, and A. Gulbis, South African Astronomical Observatory and Southern African Large Telescope; and G. Pignata, Universidad Andres Bello, report that low-dispersion spectra (range 330-890 nm), obtained on Dec. 21.1 UT with the 10-m SALT telescope (+ RSS), show PSN J12472930-4319443 = SN 2012hv to be an old type-II supernova. Cross-correlation with a library of supernova spectra using the "Supernova Identification" code (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024) shows good matches with the type-IIP event 2004et at approximately three months after maximum light.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars.

(C) Copyright 2012 CBAT 2012 December 23 (CBET 3352) Daniel W. E. Green

Supernova 2012hv
Descubierta el 16/12/2012, Magnitud 16.1.
Encontrada en NGC 4681, R.A. = 12h47m29s.30, Decl. = -43°19'44".3 .
Localización 6".0 Este y 21".0 Norte del centro de NGC 4681.
Tipo II. PGC 43166.
Electronic Telegram No. 3347


Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge,MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2012hs in ESO 213-2.
M. Cifuentes, G. Pignata, and Y. Apostolovski, Universidad Andres Bello; P. Sanchez, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, F. Forster, S. Silva, F. Carrasco, C. Hervias, and R. Ramirez, Universidad de Chile; F. Aros, Pontificia Universidad Catolica de Chile; B. Conuel, Wesleyan University; G. Folatelli, IPMU, University of Tokyo; and D. Reichart, K. Ivarsen, J. Haislip, A. Crain, D. Foster, M. Nysewander, and A. LaCluyze, University of North Carolina at Chapel Hill, on behalf of the CHASE project (which is part of the Millennium Center for Supernova Science collaboration), report the discovery of an apparent supernova (mag approximately 14.5) on unfiltered image taken on Dec. 15.18 and 16.16 UT with the 0.41-m 'PROMPT 5' telescope located at Cerro Tololo. The new object is located at R.A. = 9h49m14s.71 +/- 0".2, Decl. = -47o54'45".6 +/- 0".2 (equinox 2000.0), which is about 18".3 west and 26".9 north of center of the galaxy ESO 213-2. Nothing is visible at this position on archival images taken on Dec. 11.28 (limiting mag 18.5). The variable was designated PSN J09491471-4754456 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2012hs based on the spectroscopic confirmation reported below.

D. Milisavljevic, Harvard-Smithsonian Center for Astrophysics (CfA); R. Fesen, Dartmouth College; T. Pickering and D. Buckley, South African Astronomical Observatory and Southern African Large Telescope; and A. Soderberg and R. Margutti, CfA, report that low-dispersion spectra (range 330-890 nm), obtained Dec. 18 and 19 UT with the 10-m SALT telescope (+ RSS), show PSN J09491471-4754456 = SN 2012hs to be a very young type-II supernova. Broad P-Cyg absorptions are observed over a strong blue continuum. After removal of the host-galaxy (ESO 213-2) redshift of z = 0.006424 (via NED; HIPASS 2006), the minimum of the H_alpha, H_beta, and Na I D features have blueshifted velocities of approximately 15000 km/s.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars.

(C) Copyright 2012 CBAT 2012 December 21 (CBET 3347) Daniel W. E. Green

Supernova 2012hs
Descubierta el 15/12/2012, Magnitud 16.6.
Encontrada en ESO 213-2, R.A. = 09h49m14s.71, Decl. = -47°54'45".6 .
Localización 18".3 Oeste y 26".9 Norte del centro de ESO 213-2.
Tipo II. PGC 28234.
Electronic Telegram No. 3326


Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge,MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2012hf in NGC 3469.
M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, F. Forster, S. Silva, F. Carrasco, P. Sanchez, C. Hervias, and R. Ramirez, Universidad de Chile; G. Pignata, M. Cifuentes, and Y. Apostolovski, Universidad Andres Bello; F. Aros, Pontificia Universidad Catolica de Chile; B. Conuel, Wesleyan University; G. Folatelli, IPMU, University of Tokyo; and D. Reichart, K. Ivarsen, J. Haislip, A. Crain, D. Foster, M. Nysewander, and A. LaCluyze, University of North Carolina at Chapel Hill, on behalf of the CHASE project (which is part of the Millennium Center for Supernova Science collaboration), report the discovery of an apparent supernova (mag approximately 17.2) on an unfiltered image taken on Nov. 22.32 UT with the 0.41-m 'PROMPT 5' telescope located at Cerro Tololo. The new object, which is also present at mag approximately 17.0 in an image taken on Nov. 23.31, is located at R.A. = 10h56m57s.46 +/- 0".2, Decl. = -14o17'37".8 +/- 0".2 (equinox 2000.0), which is about 3".5 west and 23".9 north of the center of the galaxy NGC 3469. Nothing is visible at this position on archival images taken on May 4.04 (limiting mag 18.0) or in a stack of eleven 40-s images taken between Feb. 25.22 and May 4.04 (limiting mag 19.5). The variable was designated PSN J10565746-1417378 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2012hf based on the spectroscopic confirmation reported below. Additional CCD magnitudes for 2012hf: Nov. 24.432, 16.5 (L. Elenin, Lyubertsy, Russia; and I. Molotov, Moscow, Russia; images taken remotely with a 0.45-m f/2.8 telescope at the ISON-NM Observatory near Mayhill, NM, USA; limiting mag about 19.1; position end figures 57s.43 +/- 0".08, 38".4 +/- 0".08; UCAC-4 reference stars; image posted at website URL http://spaceobs.org/images/TOCP/PSNJ10565746-1417378-20121124.png); 25.499, 17.8 (Joseph Brimacombe, Cairns, Australia; remotely using a 51-cm RCOS telescope + luminance filter at the New Mexico Skies Observatory near Mayhill; position end figures 57s.49, 37".7; image posted at website URL http://www.flickr.com/photos/43846774@N02/8225320294/).

G. Pignata and F. Bufano, Universidad Andres Bello; S. Gonzalez-Gaitan, S. Marchi, F. Forster, J. Anderson, and C. Gutierrez, Universidad de Chile; S. Taubenberger, Max-Planck-Institute fuer Astrophysik, Garching; S. Valenti, University of California at Santa Barbara and Las Cumbres Observatory Global Telescope; A. Pastorello and S. Benetti, Istituto Nazionale di Astrofisica, Padova Astronomical Observatory; S. J. Smartt, K. Smith, D. Young, and C. Inserra, Queen's University, Belfast; M. Sullivan, University of Southampton; and A. Gal-Yam and O. Yaron, Weizmann Institute for Science, on behalf of the PESSTO collaboration (cf. Valenti et al., as posted at website URL http://www.astronomerstelegram.org/?read=4037), report on optical spectroscopy (range 360-910 nm), obtained on Nov. 23.34 UT with the New Technology Telescope (+ EFOSC2), showing that PSN J10565746-1417378 = SN 2012hf is a type-Ic supernova about a week before maximum. PESSTO classification spectra can be obtained at website URL http://www.pessto.org/; classification is made via SNID (Blondin and Tonry 2007, Ap.J. 666, 1024) and GELATO (Harutyunyan et al. 2008, A.Ap. 488, 383).


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars.

(C) Copyright 2012 CBAT 2012 December 03 (CBET 3326) Daniel W. E. Green

Supernova 2012hf
Descubierta el 22/11/2012, Magnitud 17.8.
Encontrada en NGC 3469, R.A. = 10h56m57s.46, Decl. = -14°17'37".8 .
Localización 3".5 Oeste y 23".9 Norte del centro de NGC 3469.
Tipo Ic. PGC 32912.
Electronic Telegram No. 3325


Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge,MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2012he in MCG -06-12-2.
MM. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, F. Forster, S. Silva, F. Carrasco, P. Sanchez, C. Hervias, and R. Ramirez, Universidad de Chile; G. Pignata, M. Cifuentes, and Y. Apostolovski, Universidad Andres Bello; F. Aros, Pontificia Universidad Catolica de Chile; B. Conuel, Wesleyan University; G. Folatelli, IPMU, University of Tokyo; and D. Reichart, K. Ivarsen, J. Haislip, A. Crain, D. Foster, M. Nysewander, and A. LaCluyze, University of North Carolina at Chapel Hill, on behalf of the CHASE project (which is part of the Millennium Center for Supernova Science collaboration), report the discovery of an apparent supernova (mag approximately 18.2) on unfiltered images taken on Nov. 22.32 and 23.18 UT with the 0.41-m 'PROMPT 1' telescope located at Cerro Tololo. The new object is located at R.A. = 5h00m50s.07 +/- 0".2, Decl. = -38o39'11".4 +/- 0".2 (equinox 2000.0), which is about 7".1 west and 5".6 north of center of the galaxy MCG -06-12-2. Nothing is visible at this position on archival images taken on Nov. 1.31 (limiting mag 18.5) or on a stack of twelve 40-s images taken between Jan. 4.10 and Nov. 1.31 (limiting mag 19.7). The variable was designated PSN J05005007-3839114 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2012he based on the spectroscopic confirmation reported below.

G. Pignata and F. Bufano, Universidad Andres Bello; S. Gonzalez-Gaitan, S. Marchi, F. Forster, J. Anderson, and C. Gutierrez, Universidad de Chile; S. Taubenberger, Max-Planck-Institute fuer Astrophysik, Garching; S. Valenti, University of California at Santa Barbara and Las Cumbres Observatory Global Telescope; A. Pastorello and S. Benetti, Istituto Nazionale di Astrofisica, Padova Astronomical Observatory; S. J. Smartt, K. Smith, D. Young, and C. Inserra, Queen's University, Belfast; M. Sullivan, University of Southampton; and A. Gal-Yam and O. Yaron, Weizmann Institute for Science, on behalf of the PESSTO collaboration (cf. Valenti et al., as posted at website URL http://www.astronomerstelegram.org/?read=4037), report on optical spectroscopy (range 360-910 nm), obtained on Nov. 23.33 UT with the New Technology Telescope (+ EFOSC2), showing that PSN J05005007-3839114 = SN 2012he is a type-Ia supernova, 3-4 weeks after maximum. PESSTO classification spectra can be obtained at website URL http://www.pessto.org/; classification is made via SNID (Blondin and Tonry 2007, Ap.J. 666, 1024) and GELATO (Harutyunyan et al. 2008, A.Ap. 488, 383).


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars.

(C) Copyright 2012 CBAT 2012 December 03 (CBET 3325) Daniel W. E. Green

Supernova 2012he
Descubierta el 22/11/2012, Magnitud 18.2.
Encontrada en MCG -06-12-2, R.A. = 05h00m50s.07, Decl. = -38°39'11".4 .
Localización 7".1 Oeste y 5".6 Norte del centro de MCG -06-12-2.
Tipo Ia. PGC 16547.
Electronic Telegram No. 3323


Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge,MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2012hc in NGC 986A (ESO 299-6).
M. Cifuentes, G. Pignata, and Y. Apostolovski, Universidad Andres Bello; J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, F. Forster, S. Silva, F. Carrasco, P. Sanchez, C. Hervias, and R. Ramirez, Universidad de Chile; F. Aros, Pontificia Universidad Catolica de Chile; B. Conuel, Wesleyan University; G. Folatelli, IPMU, University of Tokyo; and D. Reichart, K. Ivarsen, J. Haislip, A. Crain, D. Foster, M. Nysewander, and A. LaCluyze, University of North Carolina at Chapel Hill, on behalf of the CHASE project (which is part of the Millennium Center for Supernova Science collaboration), report the discovery of an apparent supernova (mag approximately 14.1) on an unfiltered image taken on Nov. 10.16 UT with the 0.41-m 'PROMPT 4' telescope located at Cerro Tololo. The new object is located at R.A. = 2h32m40s.96 +/- 0".2, Decl. = -39o17'56".2 +/- 0".2 (equinox 2000.0). Nothing is visible at this position on a stack of fifteen 40-s CHASE images taken between Jan. 4.13 and Nov. 4.29 (limiting mag 20.6). The variable was designated PSN J02324096-3917562 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2012hc based on the spectroscopic confirmation reported below. Additional magnitudes for 2012hc: Nov. 4.29, [18.5 (CHASE); 15.531, 15.2 (Joseph Brimacombe, Cairns, Australia; 43-cm CDK Planewave telescope + infrared filter, bandpass > 700 nm; position end figures 40s.94, 56".3; image posted at URL http://www.flickr.com/photos/43846774@N02/8198000641/.

G. Pignata and F. Bufano, Universidad Andres Bello; S. Gonzalez-Gaitan, S. Marchi, F. Forster, J. Anderson, and C. Gutierrez, Universidad de Chile; S. Taubenberger, Max-Planck-Institute fuer Astrophysik, Garching; S. Valenti, University of California at Santa Barbara and Las Cumbres Observatory Global Telescope; A. Pastorello and S. Benetti, Istituto Nazionale di Astrofisica, Padova Astronomical Observatory; S. J. Smartt, K. Smith, D. Young, and C. Inserra, Queen's University, Belfast; M. Sullivan, University of Southampton; and A. Gal-Yam and O. Yaron, Weizmann Institute for Science, on behalf of the PESSTO collaboration (cf. Valenti et al., as posted at website URL http://www.astronomerstelegram.org/?read=4037), report on optical spectroscopy (range 360-910 nm) obtained on Nov. 12.23 UT with the New Technology Telescope (+ EFOSC2), showing PSN J02324096-3917562 = SN 2012hc to be a type-II supernova at one week after explosion. PESSTO classification spectra can be obtained at website URL http://www.pessto.org/; classification is made via SNID (Blondin and Tonry 2007, Ap.J. 666, 1024) and GELATO (Harutyunyan et al. 2008, A.Ap. 488, 383).


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars.

(C) Copyright 2012 CBAT 2012 December 03 (CBET 3323) Daniel W. E. Green

Supernova 2012hc
Descubierta el 10/11/2012, Magnitud 14.1.
Encontrada en NGC 986A, R.A. = 2h32m40s.96, Decl. = -39º17'56".2.
Localización 0".0 Este y 0".0 Norte del centro de NGC 986A.
Tipo II. PGC 09686.
Electronic Telegram No. 3322


Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge,MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2012hb in ESO 90-15.
G. Pignata, M. Cifuentes, and Y. Apostolovski, Universidad Andres Bello; J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, F. Forster, S. Silva, F. Carrasco, P. Sanchez, C. Hervias, and R. Ramirez, Universidad de Chile; F. Aros, Pontificia Universidad Catolica de Chile; B. Conuel, Wesleyan University; G. Folatelli, IPMU, University of Tokyo; and D. Reichart, K. Ivarsen, J. Haislip, A. Crain, D. Foster, M. Nysewander, and A. LaCluyze, University of North Carolina at Chapel Hill, on behalf of the CHASE project (which is part of the Millennium Center for Supernova Science collaboration), report the discovery of an apparent supernova (mag approximately 17.5) on an unfiltered image taken on Nov. 4.33 UT with the 0.41-m 'PROMPT 4' telescope located at Cerro Tololo. The new object is located at R.A. = 9h02m05s.46 +/- 0".2, Decl. = -64o54'19".7 +/- 0".2 (equinox 2000.0), which is about 1".0 west and 4".6 south of the center of the galaxy ESO 90-15. Nothing is visible at this position on archival images taken on Apr. 7.03 (limiting mag 18.5) or in a stack of eighteen 40-sec images taken between 2011 Nov. 1.30 and 2012 Apr. 7.03 (limiting mag 20.4). The variable was designated PSN J09020546-6454197 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2012hb based on the spectroscopic confirmation reported below. Joseph Brimacombe, Cairns, Australia, reports position end figures 05s.44, 20".3 from exposures taken with 41-cm RCOS telescope (+ infrared filter on Nov. 15.748; his image is posted at the following website URL: http://www.flickr.com/photos/43846774@N02/8198232937/.

G. Pignata and F. Bufano, Universidad Andres Bello; S. Gonzalez-Gaitan, S. Marchi, F. Forster, J. Anderson, and C. Gutierrez, Universidad de Chile; S. Taubenberger, Max-Planck-Institute fuer Astrophysik, Garching; S. Valenti, University of California at Santa Barbara and Las Cumbres Observatory Global Telescope; A. Pastorello and S. Benetti, Istituto Nazionale di Astrofisica, Padova Astronomical Observatory; S. J. Smartt, K. Smith, D. Young, and C. Inserra, Queen's University, Belfast; M. Sullivan, University of Southampton; and A. Gal-Yam and O. Yaron, Weizmann Institute for Science, on behalf of the PESSTO collaboration (cf. Valenti et al., as posted at website URL http://www.astronomerstelegram.org/?read=4037), report on optical spectroscopy (range 360-910 nm) obtained on Nov. 7.25 UT with the New Technology Telescope (+ EFOSC2), showing PSN J09020546-6454197 = SN 2012hb to be a type-II supernova at two months post-explosion. PESSTO classification spectra can be obtained at website URL http://www.pessto.org/; classification is made via SNID (Blondin and Tonry 2007, Ap.J. 666, 1024) and GELATO (Harutyunyan et al. 2008, A.Ap. 488, 383).


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars.

(C) Copyright 2012 CBAT 2012 December 03 (CBET 3322) Daniel W. E. Green

Supernova 2012hb
Descubierta el 04/11/2012, Magnitud 17.5.
Encontrada en ESO 90-15, R.A. = 9h02m05s.46, Decl. = -64º54'19".7.
Localización 1".0 Oeste y 4".6 Sur del centro de ESO 90-15.
Tipo II. PGC 25373.
Electronic Telegram No. 3284


Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge,MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2012fy.
F. Carrasco, R. Ramirez, J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, F. Forster, S. Silva, P. Sanchez, and C. Hervias, Universidad de Chile; G. Pignata, M. Cifuentes, and Y. Apostolovski, Universidad Andres Bello; F. Aros, Pontificia Universidad Catolica de Chile; B. Conuel, Wesleyan University; G. Folatelli, IPMU, University of Tokyo; and D. Reichart, K. Ivarsen, J. Haislip, A. Crain, D. Foster, M. Nysewander, and A. LaCluyze, University of North Carolina at Chapel Hill, on behalf of the CHASE project (which is part of the Millennium Center for Supernova Science collaboration), report the discovery of an apparent supernova (mag approximately 17.2) on an unfiltered image taken on Aug. 12.07 UT with the 0.41-m 'PROMPT 5' telescope located at Cerro Tololo. Thew new object is located at R.A. = 19h37m15s.72 +/- 0".2, Decl. = -42º18'27".1 +/- 0".2 (equinox 2000.0), which is about 12".7 east and 19".0 north of center of the presumed host galaxy. Nothing is visible at this position in a stack of fifteen 40-s archival images taken between 2011 July 14 and 18 (limiting mag 20.5). The variable was designated PSN J19371572-4218271 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2012fy based on the spectroscopic confirmation reported below. Additional CCD magnitudes for 2012fy: July 18.10, [18.0 (CHASE); Aug. 13.05, 17.0 (CHASE); Aug. 17.466, 17.7 (Joseph Brimacombe, Cairns, Australia; infrared filter; wavelength > 700 nm; position end figures 15s.70, 27".5; image posted at the following website URL: http://www.flickr.com/photos/43846774@N02/7805169858/).

C. Inserra, S. J. Smartt, M. Fraser, D. Young, and K. Smith, Queen's University, Belfast; F. Cellier-Holzem and P. El-Hage, Laboratoire de Physique Nucleaire et de Hautes Energies, Paris; Y.-C. Pan, University of Oxford; M. Sullivan, University of Southampton; I. Arcavi, A. Gal-Yam, and O. Yaron, Wiezmann Institute of Science; S. Benetti, A. Pastorello, and S. Valenti, Istituto Nazionale di Astrofisica, Padova; and S. Taubenberger, A. Sternberg, and S. Benitez-Herrera, Max-Planck-Institute fuer Astrophysik, Garching, on behalf of the PESSTO collaboration (see Valenti et al., posted at website URL http://www.astronomerstelegram.org/?read=4037), report that optical spectroscopy (range 360-910 nm), obtained on Aug. 18 with the New Technology Telescope (+ EFOSC2), show that PSN J19371572-4218271 = SN 2012fy is a type-IIP supernova at redshift z = 0.020; the best fit is to the spectrum of SN 1999em at +10 to +12 days. PESSTO classification spectra can be obtained from website URL http://www.pessto.org/; classification is made via SNID (Blondin and Tonry 2007, Ap.J. 666, 1024) and GELATO (Harutyunyan et al. 2008, A.Ap. 488, 383).


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars.

(C) Copyright 2012 CBAT 2012 November 01 (CBET 3284) Daniel W. E. Green

Supernova 2012fy
Descubierta el 12/08/2012, Magnitud 17.2.
Encontrada en ESO 185-54, R.A. = 19h37m15s.72, Decl. = -42º18'27".1.
Localización 12".7 Este y 19".0 Norte del centro de una galaxia anónima.
Tipo IIP. PGC 63416.
Electronic Telegram No. 3286


Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge,MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2012ga in NGC 6976.
G. Pignata, M. Cifuentes, Y. Apostolovski, and M. Vidal, Universidad Andres Bello; J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, F. Forster, S. Silva, F. Carrasco, P. Sanchez, C. Hervias, and R. Ramirez, Universidad de Chile; F. Aros, Pontificia Universidad Catolica de Chile; B. Conuel, Wesleyan University; G. Folatelli, IPMU, University of Tokyo; and D. Reichart, K. Ivarsen, J. Haislip, A. Crain, D. Foster, M. Nysewander, and A. LaCluyze, University of North Carolina at Chapel Hill, on behalf of the CHASE project (which is part of the Millennium Center for Supernova Science collaboration), report the discovery of an apparent supernova (mag approximately 17.8) on an unfiltered image taken on Apr. 22.40 UT with the 0.41-m 'PROMPT 3' telescope located at Cerro Tololo. The new object is located at R.A. = 20h52m25s.10 +/- 0".2, Decl. = -5º46'15".6 +/- 0".2 (equinox 2000.0), which is about 13".9 west and 4".8 north of the center of the galaxy NGC 6976. Nothing is visible at this position on a stack of fifteen 40-s archival images taken between 2011 Apr. 14.36 and 2012 Apr. 1.39 (limiting mag 20.5). The variable was designated PSN J20522510-0546156 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2012ga based on the spectroscopic confirmation reported below. Additional CCD magnitudes for 2012ga: Apr. 15.35, [18.0 (CHASE); 23.38, 17.5 (CHASE); 28.431, 18.9 (J. Brimacombe, Cairns, Australia; obtained remotely using a 51-cm RCOS telescope + STL11K camera + luminance filter at the New Mexico Skies Observatory near Mayhill, NM, U.S.A.; position end figures 25s.12, 16".1; image posted at http://www.flickr.com/photos/43846774@N02/7122722421/).

C. Inserra, S. J. Smartt, M. Fraser, D. Young, and K. Smith, Queen's University, Belfast; F. Cellier-Holzem and P. El-Hage, Laboratoire de Physique Nucleaire et de Hautes Energies, Paris; Y.-C. Pan, University of Oxford; M. Sullivan, University of Southampton; I. Arcavi, A. Gal-Yam, and O. Yaron, Wiezmann Institute of Science; S. Benetti, A. Pastorello, and S. Valenti, Istituto Nazionale di Astrofisica, Padova; and S. Taubenberger, A. Sternberg, and S. Benitez-Herrera, Max-Planck-Institute fuer Astrophysik, Garching, on behalf of the PESSTO collaboration (see Valenti et al., posted at website URL http://www.astronomerstelegram.org/?read=4037), report that optical spectroscopy (range 360-910 nm), obtained on Apr. 29 with the New Technology Telescope (+ EFOSC2), show that PSN J20522510-0546156 = SN 2012ga is a type-II supernova at redshift z = 0.020; the spectrum is similar to those of a few type-II supernovae at two weeks past explosion. PESSTO classification spectra can be obtained from website URL http://www.pessto.org/; classification is made via SNID (Blondin and Tonry 2007, Ap.J. 666, 1024) and GELATO (Harutyunyan et al. 2008, A.Ap. 488, 383).


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars.

(C) Copyright 2012 CBAT 2012 November 01 (CBET 3286) Daniel W. E. Green

Supernova 2012ga
Descubierta el 22/04/2012, Magnitud 17.8.
Encontrada en ESO 185-54, R.A. = 20h52m25s.10, Decl. = -5º46'15".6 .
Localización 13".9 Oeste y 4".8 Norte del centro de NGC 6976.
Tipo II. PGC 65620.
Electronic Telegram No. 3285


Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge,MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2012fz IN ESO 185-54.
J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, F. Forster, S. Silva, F. Carrasco, P. Sanchez, C. Hervias, and R. Ramirez, Universidad de Chile; G. Pignata, M. Cifuentes, Y. Apostolovski, and M. Vidal, Universidad Andres Bello; F. Aros, Pontificia Universidad Catolica de Chile; B. Conuel, Wesleyan University; G. Folatelli, IPMU, University of Tokyo; and D. Reichart, K. Ivarsen, J. Haislip, A. Crain, D. Foster, M. Nysewander, and A. LaCluyze, University of North Carolina at Chapel Hill, on behalf of the CHASE project (which is part of the Millennium Center for Supernova Science collaboration), report the discovery of an apparent supernova ESO 185-54 (mag approximately 14.5) on a unfiltered image taken on June 27.38 UT with the 0.41-m 'PROMPT 1' telescope located at Cerro Tololo. The new object is located at R.A. = 20h03m24s.84 +/- 0".2, Decl. = -55º57'19".2 +/- 0".2 (equinox 2000.0), which is about 18".2 west and 29".3 south of center of the galaxy ESO 185-54. Nothing is visible at this position in a stack of nine 40-s archival images taken between Mar. 26.38 and May 24.39 (limiting mag 20.0). The variable was designated PSN J20032484-5557192 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2012fz based on the spectroscopic confirmation reported below. Additional CCD magnitudes for 2012fz: June 5.25, [18.0 (CHASE); July 1.622, 15.9 (Joseph Brimacombe, Cairns, Australia; infrared filter; wavelength > 700 nm; position end figures 24s.84, 19".1; image posted at URL http://www.flickr.com/photos/43846774@N02/7485846136/); 7.47, 14.5 (A. Klotz; TAROT telescope at La Silla, Chile).

C. Inserra, S. J. Smartt, M. Fraser, D. Young, and K. Smith, Queen's University, Belfast; F. Cellier-Holzem and P. El-Hage, Laboratoire de Physique Nucleaire et de Hautes Energies, Paris; Y.-C. Pan, University of Oxford; M. Sullivan, University of Southampton; I. Arcavi, A. Gal-Yam, and O. Yaron, Wiezmann Institute of Science; S. Benetti, A. Pastorello, and S. Valenti, Istituto Nazionale di Astrofisica, Padova; and S. Taubenberger, A. Sternberg, and S. Benitez-Herrera, Max-Planck-Institute fuer Astrophysik, Garching, on behalf of the PESSTO collaboration (see Valenti et al., posted at website URL http://www.astronomerstelegram.org/?read=4037), report that optical spectroscopy (range 360-910 nm), obtained on Aug. 7 with the New Technology Telescope (+ EFOSC2), show that PSN J20032484-5557192 = SN 2012fz is a type-Ia supernova at redshift z = 0.017; the best fit is to the spectrum of SN 2003du at 33 days past explosion. PESSTO classification spectra can be obtained from website URL http://www.pessto.org/; classification is made via SNID (Blondin and Tonry 2007, Ap.J. 666, 1024) and GELATO (Harutyunyan et al. 2008, A.Ap. 488, 383).


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars.

(C) Copyright 2012 CBAT 2012 November 01 (CBET 3285) Daniel W. E. Green

Supernova 2012fz
Descubierta el 27/06/2012, Magnitud 14.5.
Encontrada en ESO 185-54, R.A. = 20h03m24s.84, Decl. = -55º7'19".2 .
Localización 18".2 Oeste y 29".3 Sur del centro de ESO 185-54.
Tipo Ia. PGC 64041.
Electronic Telegram No. 3232


Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge,MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2012ev.
G. Pignata, M. Cifuentes, and Y. Apostolovski, Universidad Andres Bello; J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, F. Forster, S. Silva, F. Carrasco, P. Sanchez, C. Hervias, and R. Ramirez, Universidad de Chile; F. Aros, Pontificia Universidad Catolica de Chile; B. Conuel, Wesleyan University; G. Folatelli, IPMU, University of Tokyo; and D. Reichart, K. Ivarsen, J. Haislip, A. Crain, D. Foster, M. Nysewander, and A. LaCluyze, University of North Carolina at Chapel Hill, on behalf of the CHASE project (which is part of the Millennium Center for Supernova Science collaboration), report the discovery of an apparent supernova (mag approximately 17.8) on an unfiltered image taken on Sept. 5.08 UT with the 0.41-m 'PROMPT 3' telescope located at Cerro Tololo. The new object is located at R.A. = 22h03m02s.99 +/- 0".2, Decl. = -22º31'01".0 +/- 0".2 (equinox 2000.0), which is about 4".9 west and 0".5 south of center of the presumed host galaxy. The variable was designated PSN J22030299-2231010 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2012ev based on the spectroscopic confirmation reported below. Additional unfiltered CCD magnitudes for 2012ev: 2011 July 24-2012 Aug. 28, [20.5 (stack of twenty-two 40-s CHASE images); 2012 Aug. 28.10, [18.5 (CHASE); Sept. 6.05, 17.7 (CHASE); 8.945, 18.2 (Federica Luppi and Luca Buzzi, Varese, Italy; 0.38-m f/6.8 reflector; position end figures 03s.05, 00".6; reference stars from CMC-14 catalogue; image posted at website URL http://www.astrogeo.va.it/pub/TOCP/PSN_J22030299-2231010.jpg). Joseph Brimacombe, Cairns, Australia, reports that four 15-min CCD images taken with a 41-cm RCOS telescope (+ STL6K camera + infrared filter) yields position end figures 02s.97, 00".0 (photometry was too difficult due to the background light of the presumed host galaxy); his image is posted at website URL http://www.flickr.com/photos/43846774@N02/7974278686/.

N. Morrell, Las Campanas Observatory; and G. Pignata, Universidad Andres Bello, on behalf of the Millenium Center for Supernova Science and the Carnegie Supernova Project collaboration, write that on Sept. 13.07 UT they obtained an optical spectrogram (range 380-920 nm) of PSN J22030299-2231010 = SN 2012ev with the du Pont telescope (+ WFCCD) at Las Campanas Observatory, which reveals this is a type-Ia supernova approximately one week after maximum brightness. Cross-correlation with a library of supernova spectra using the Supernova Identification tool (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024) suggests that 2012ev is a normal type-Ia supernova, very similar to SN 1998co at seven days after maximum light. Adopting for the host galaxy (2MASX J22030334-2231004) a recession velocity of 21952 km/s (Jones et al. 2009, The 6dF Galaxy Survey Data Release 3; via NED), the minimum of the Si II 635.5-nm absorption appears to be blueshifted by 10450 km/s.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars.

(C) Copyright 2012 CBAT 2012 September 17 (CBET 3232) Daniel W. E. Green

Supernova 2012ev
Descubierta el 05/09/2012, Magnitud 17.8.
Encontrada en galaxia anónima, R.A. = 22h03m02s.99, Decl. = -22°31'01".0 .
Localización 5" Oeste y 0" Norte del centro de una galaxia anónima.
Tipo Ia. cerca de PGC 67920.
Electronic Telegram No. 3170


Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge,MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2012dl in ESO 459-6.
G. Pignata, M. Cifuentes, Y. Apostolovski, and M. Vidal, Universidad Andres Bello; J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, F. Forster, S. Silva, F. Carrasco, P. Sanchez, C. Hervias, and R. Ramirez, Universidad de Chile; F. Aros, Pontificia Universidad Catolica de Chile; B. Conuel, Wesleyan University; G. Folatelli, IPMU, University of Tokyo; and D. Reichart, K. Ivarsen, J. Haislip, A. Crain, D. Foster, M. Nysewander, and A. LaCluyze, University of North Carolina at Chapel Hill, on behalf of the CHASE project (which is part of the Millennium Center for Supernova Science collaboration), report the discovery of an apparent supernova (mag approximately 16.3) on an unfiltered image taken on June 6.16 UT with the 0.41-m 'PROMPT 3' telescope located at Cerro Tololo. The new object is located at R.A. = 19h12m08s.21 +/- 0".2, Decl. = -32º07'37".0 +/- 0".2 (equinox 2000.0), which is about 7".9 west and 1".8 south of the center of the galaxy ESO 459-6. The variable was designated PSN J19120821-3207370 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2012dl based on the spectroscopic confirmation reported below. Additional magnitudes for 2012dl: 2011 Mar. 25.32-2012 May 24.23, [20.0 (stack of fifteen 40-s CHASE images); 2012 May 24.23, [18.0 (CHASE); June 7.13, 16.4 (CHASE); 9.703, 18.5 (Joseph Brimacombe, Cairns, Australia; image taken with infrared filter; position end figures 08s.18, 37".5; image posted at website URL http://www.flickr.com/photos/43846774@N02/7356060622/); 18.716, 18.7 (Brimacombe; position end figures 08s.31, 37".1; image posted at website URL http://www.flickr.com/photos/43846774@N02/7496901246/).

G. Pignata, Universidad Andres Bello; and T. De Jaeger, Universidad de Chile, on behalf of the Millennium Center for Supernova Science collaboration, report that a low-dispersion spectrogram (range 370-940 nm) of PSN J19120821-3207370 = SN 2012dl, obtained on June 23.1 UT with the 6.5-m Magellan II Clay telescope (+ LDSS3), shows that it is a type-Ia supernova. Cross- correlation with a library of supernova spectra using the Supernova Identification Code (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024) gives a good match with SN 1994D at three weeks after maximum light.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars.

(C) Copyright 2012 CBAT 2012 July 08 (CBET 3170) Daniel W. E. Green

Supernova 2012dl
Descubierta el 06/06/2012, Magnitud 16.3.
Encontrada en ESO 459-6 , R.A. = 19h12m08s.21, Decl. = -32º07'37".0.
Localización 7".9 Oeste y 1".8 Sur del centro de ESO 459-6.
Tipo Ia. PGC 62889.
Electronic Telegram No. 3163


Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge,MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2012dh.
J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, F. Forster, S. Silva, F. Carrasco, P. Sanchez, C. Hervias, and R. Ramirez, Universidad de Chile; G. Pignata, M. Cifuentes, Y. Apostolovski, and M. Vidal, Universidad Andres Bello; F. Aros, Pontificia Universidad Catolica de Chile; B. Conuel, Wesleyan University; G. Folatelli, IPMU, University of Tokyo; and D. Reichart, K. Ivarsen, J. Haislip, A. Crain, D. Foster, M. Nysewander, and A. LaCluyze, University of North Carolina at Chapel Hill, on behalf of the CHASE project (which is part of the Millennium Center for Supernova Science collaboration), report the discovery of an apparent supernova (mag approximately 13.5 +/- 0.3) on an unfiltered image taken on June 26.98 UT with the 0.41-m 'PROMPT 3' telescope located at Cerro Tololo. The new object is located at R.A. = 13h11m09s.04 +/- 0".2, Decl. = -28o00'33".1 +/- 0".2 (equinox 2000.0), which is about 6".9 west and 3".9 north of center of the galaxy ESO 443-80. The variable was designated PSN J13110904-2800331 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2012dh based on the spectroscopic confirmation reported below. Additional CCD magnitudes for 2012dh: June 20.04, [18.5 (CHASE); 23.11, [18.0 (CHASE); July 1.396, 14.7 (Joseph Brimacombe, Cairns, Australia; 41-cm RCOS telescope + STL6K camera + infrared filter; bandpass > 700 nm; position end figures 09s.05, 33".2; image posted at website URL http://www.flickr.com/photos/43846774@N02/7489603334/).

D. Milisavljevic, Harvard-Smithsonian Center for Astrophysics (CfA); R. Fesen, Dartmouth College; A. Soderberg and R. Margutti, CfA; T. Pickering, P. Kotze, and S. Crawford, South African Astronomical Observatory; and G. Pignata, Universidad Andres Bello, report that low-dispersion spectra (range 320-900 nm) obtained on June 28.84, 30.84, and July 2.84 UT with the 10-m SALT telescope (+ RSS) of PSN J13110904-2800331 = 2012dh show it to be a type-II supernova. All spectra are dominated by a very blue continuum and relatively weak H Balmer P-Cyg absorptions that have been increasing in strength between epochs, suggesting that these data have been obtained not long after outburst. The July 2 spectrum is similar to spectra of the type-IIb event 1987K at early times (Filippenko 1988, A.J. 96, 6). From this spectrum, the blueshifted velocity of the considerably broad H_alpha profile is estimated to be -11600 km/s after removal of the host-galaxy recession velocity of 2115 km/s (Garcia et al. 1994, A.Ap. Suppl. 107, 256).


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars.

(C) Copyright 2012 CBAT 2012 July 04 (CBET 3163) Daniel W. E. Green

Supernova 2012dh
Descubierta el 26/06/2012, Magnitud 14.7.
Encontrada en ESO 443-080, R.A. = 13h11m09s.04, Decl. = -28°00'33".1.
Localización 6".9 Oeste y 3".9 Norte del centro de ESO 443-080.
Tipo IIb. PGC 45764.
Electronic Telegram No. 3125


Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge,MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2012cl in ESO 263-23.
J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, F. Forster, S. Silva, F. Carrasco, P. Sanchez, C. Hervias, and R. Ramirez, Universidad de Chile; G. Pignata, M. Cifuentes, Y. Apostolovski, and M. Vidal, Universidad Andres Bello; F. Aros, Pontificia Universidad Catolica de Chile; B. Conuel, Wesleyan University; G. Folatelli, IPMU, University of Tokyo; and D. Reichart, K. Ivarsen, J. Haislip, A. Crain, D. Foster, M. Nysewander, and A. LaCluyze, University of North Carolina at Chapel Hill, on behalf of the CHASE project (which is part of the Millennium Center for Supernova Science collaboration) report the discovery of an apparent supernova (mag approximately 16.0 +/- 0.4) on unfiltered images taken on May 10.99 and 11.99 UT with the 0.41-m 'PROMPT 3' telescope located at Cerro Tololo. The new object is located at R.A. = 10h14m50s.93 +/- 0".2, Decl. = -43o37'48".8 +/- 0".2 (equinox 2000.0), which is about 69".8 west and 40".2 south of the center of the galaxy ESO 263-23. Nothing is visible at this position on archival images taken on May 4.01 (limiting mag 18.5) and in a stack of thirteen 80-s images taken between 2011 Apr. 1.14 and 2012 May 4.01 (limiting mag 20.5). The variable was designated PSN J10145093-4337488 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2012cl based on the spectroscopic confirmation reported below.

D. Milisavljevic, Harvard-Smithsonian Center for Astrophysics; R. Fesen, Dartmouth College; and T. Pickering, South African Astronomical Observatory and Southern African Large Telescope, report that low-dispersion spectra (range 350-880 nm), obtained on May 24.8 UT with the 10-m SALT telescope (+ RSS), show PSN J10145093-4337488 = SN 2012cl to be a type-II supernova. Cross-correlation with a library of supernova spectra using the "Supernova Identification" code (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024) shows reasonable matches to the type-IIP events SN 2004et and SN 1999em at about ten days after maximum light.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars.

(C) Copyright 2012 CBAT 2012 May 26 (CBET 3125) Daniel W. E. Green

Supernova 2012cl
Descubierta el 10/05/2012, Magnitud 16.0.
Encontrada en ESO 263-23 , R.A. = 10h14m50s.93, Decl. = -43°37'48".8.
Localización 69".8 Oeste y 40".2 Sur del centro de ESO 263-23.
Tipo IIp. PGC 29915.
Electronic Telegram No. 3087


Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge,MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2012bt in IC 4674.
G. Pignata, M. Cifuentes, Y. Apostolovski, and M. Vidal, Universidad Andres Bello; J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, F. Carrasco, R. Cartier, F. Forster, S. Silva, P. Sanchez, C. Hervias, and R. Ramirez, Universidad de Chile; F. Aros, Pontificia Universidad Catolica de Chile; B. Conuel, Wesleyan University; G. Folatelli, IPMU, University of Tokyo; and D. Reichart, K. Ivarsen, J. Haislip, A. Crain, D. Foster, M. Nysewander, and A. LaCluyze, University of North Carolina at Chapel Hill, on behalf of the CHASE project (which is part of the Millennium Center for Supernova Science collaboration), report the discovery of an apparent supernova (magnitude approximately 16.5) on an unfiltered image taken on Mar. 7.30 UT with the 0.41-m 'PROMPT 1' telescope located at Cerro Tololo. The new object is located at R.A. = 18h08m13s.05 +/- 0".2, Decl. = -62o23'54".2 +/- 0".2 (equinox 2000.0), which is about 0".2 east and 10".8 south of the center of the galaxy IC 4674. Nothing is visible at this position on an image from the SuperCOSMOS Sky Survey taken in 1976 (limiting mag 22). The variable was designated PSN J18081305-6223542 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2012bt based on the spectroscopic confirmation reported below. Additional magnitudes for 2012bt (assumed unfiltered CCD unless noted otherwise): Feb. 12.36, [18.5 (CHASE); Mar. 10.26, 16.2 (CHASE); 24.699, 17.3 (Joseph Brimacombe, Cairns, Australia; 41-cm RCOS telescope + STL6K camera + infrared filter, wavelength range > 700 nm; position end figures 13s.10, 53".8; image posted at website URL http://www.flickr.com/photos/43846774@N02/7012499211/); Apr. 1.786, 19.7 (Brimacombe; position end figures 13s.12, 53".8; red magnitude specified); 2.738, 18.7 (Brimacombe; infrared filter; position end figures 13s.15, 53".5).

N. Morrell, Las Campanas Observatory; P. Lopez and P. Lira, Universidad de Chile; G. Pignata and F. Bufano, Universidad Andres Bello, report that an optical spectrogram (range 370-910 nm) of PSN J18081305-6223542 = SN 2012bt, obtained on Mar. 29.37 UT with the du Pont 2.5-m telescope (+ WFCCD) at Las Campanas Observatory, shows it to be a type-Ic supernova. Using a recession velocity of 4314 km/s for IC 4674 (Mathewson et al. 1992, Ap.J. Suppl. 81, 413; via NED), GELATO (Harutyunyan et al. 2008, A.Ap. 488, 383; publicly available at https://gelato.tng.iac.es) indicates that the best matches for this spectrum are with spectra of the type-Ic supernova 2004aw (Taubenberger et al. 2006, MNRAS 371, 1459) at one month after the maximum light.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars.

(C) Copyright 2012 CBAT 2012 April 19 (CBET 3087) Daniel W. E. Green

Supernova 2012bt
Descubierta el 10/03/2012, Magnitud 16.5.
Encontrada en IC 4674 , R.A. = 18h08m13s.05, Decl. = -62°23'54".3.
Localización 0" Este y 11" Sur del centro de IC 4674.
Tipo Ic. PGC 61445
Electronic Telegram No. 3076


Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge,MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2012bl.
G. Pignata, M. Cifuentes, Y. Apostolovski, and M. Vidal, Universidad Andres Bello; J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, F. Forster, S. Silva, F. Carrasco, P. Sanchez, C. Hervias, and R. Ramirez, Universidad de Chile; F. Aros, Pontificia Universidad Catolica de Chile; B. Conuel, Wesleyan University; G. Folatelli, IPMU, University of Tokyo; and D. Reichart, K. Ivarsen, J. Haislip, A. Crain, D. Foster, M. Nysewander, and A. LaCluyze, University of North Carolina at Chapel Hill, on behalf of the CHASE project (which is part of the Millennium Center for Supernova Science collaboration), report the discovery of an apparent supernova (mag approximately 15.4) on an unfiltered image taken on Mar. 26.38 UT with the 0.41-m 'PROMPT 5' telescope located at Cerro Tololo. The new object, which is also present at mag approximately 15.2 in an image taken on Mar. 27.37, is located at R.A. = 20h23m55s.28 +/- 0".2, Decl. = -48°21'17".3 +/- 0".2 (equinox 2000.0), which is about 42".9 east and 14".6 north of the center of the galaxy ESO 234-19. Nothing is visible at this position on archival images taken on Mar. 11.38 (limiting mag 18.5) and in stack of fifteen 40-s images taken between 2011 Mar. 24.35 and Nov. 9.10 (limiting mag 20.5). The variable was designated PSN J20245528-4821173 based on an erroneous digit (24s instead of 23s for the right ascension) when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2012bl based on the spectroscopic confirmation reported below.

J. L. Prieto, Princeton University, reports that he obtained an optical spectrum (range 370-930 nm) of PSN J20245528-4821173 = SN 2012bl on Mar. 27.28 UT using the du Pont 2.5-m telescope (+ WFCCD) at Las Campanas Observatory. The spectrum is that of a young type-Ia supernova. Cross-correlation with a sample of template supernovae spectra using SNID (Blondin and Tonry 2007, Ap.J. 666, 1024) shows that the best match is to the spectrum of SN 2003du at seven days before maximum light. After correcting the spectrum for the recession velocity of the host galaxy, ESO 234-19, of 5608 km/s (Mathewson and Ford 1996, Ap.J. Suppl. 107, 97), the minimum velocity of the Si II 635-nm absorption feature is measured to be -15000 km/s.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars.

(C) Copyright 2012 CBAT 2012 March 29 (CBET 3076) Daniel W. E. Green

Supernova 2012bl
Descubierta el 26/03/2012, Magnitud 15.4.
Encontrada en ESO 234-19 , R.A. = 20h23m55s.28, Decl. = -48°21'17".3.
Localización 42".9 Este y 14".6 Norte del centro de ESO 234-19 .
Tipo Ia. PGC 64611.
Electronic Telegram No. 3075


Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge,MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2012bk.
[Editor's note: this text replaces that on CBET 3074 (correction to designation in title).]

J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, F. Forster, S. Silva, F. Carrasco, P. Sanchez, C. Hervias, and R. Ramirez, Universidad de Chile; G. Pignata, M. Cifuentes, Y. Apostolovski, and M. Vidal, Universidad Andres Bello; F. Aros, Pontificia Universidad Catolica de Chile; B. Conuel, Wesleyan University; G. Folatelli, IPMU, University of Tokyo; and D. Reichart, K. Ivarsen, J. Haislip, A. Crain, D. Foster, M. Nysewander, and A. LaCluyze, University of North Carolina at Chapel Hill, on behalf of the CHASE project (which is part of the Millennium Center for Supernova Science collaboration), report the discovery of an apparent supernova (mag approximately 16.8) on an unfiltered image taken on Mar. 25.34 UT with the 0.41-m 'PROMPT 5' telescope located at Cerro Tololo. The new object is located at R.A. = 13h54m51s.69 +/- 0".2, Decl. = -26°30'46".4 +/- 0".2 (equinox 2000), which is about 8".2 west and 3".6 north of the center of the presumed host galaxy. The variable was designated PSN J13545169-2630464 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2012bk based on the spectroscopic confirmation reported below. Additional CCD magnitudes for 2012bk: Feb. 4.29-Mar. 7.15, [19.5 (CHASE; eight stacked 40-s images); Mar. 14.27, [18.0 (CHASE); 26.25, 16.0 (CHASE); 27.415, 17.3 (Joseph Brimacombe, Cairns, Australia; remotely using a 51-cm RCOS telescope + STL11K camera + luminance filter at the New Mexico Skies Observatory near Mayhill, NM, U.S.A.; position end figures 51s.68, 46"; image posted at website URL http://www.flickr.com/photos/43846774@N02/7023051949/).

J. L. Prieto, Princeton University, reports that he obtained an spectrum (range 370-930 nm) of PSN J13545169-2630464 = SN 2012bk on Mar. 27.22 UT using the du Pont 2.5-m telescope (+ WFCCD) at Las Campanas Observatory. The spectrum shows a blue continuum with several broad absorption features, the strongest ones at 578, 633, and 657 nm. The redshift of the host galaxy is determined from unresolved emission lines in the spectrum that are consistent with the wavelengths of H-beta, [O III] 500.7-nm, and H-alpha at z = 0.0176. After correcting the spectrum of the object to the rest wavelength, we find that the absorption features are consistent with blueshifted He I lines, most prominently the He I 587.5-nm has the absorption minimum at -10300 km/s. These properties are consistent with a type-Ib supernova around maximum light (e.g., Modjaz et al. 2009, Ap.J. 702, 226).


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars.

(C) Copyright 2012 CBAT 2012 March 29 (CBET 3075) Daniel W. E. Green

Supernova 2012bk
Descubierta el 25/03/2012, Magnitud 16.8.
Encontrada en galaxia anónima, R.A. = 13h54m51s.69, Decl. = -26°30'46".4.
Localización 8".2 Oeste y 3".6 Norte del centro de una galaxia anónima.
(cerca de ESO 510-G12)

Tipo Ib. PGC 49439 .
Electronic Telegram No. 3060


Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge,MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2012bc.
J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, F. Forster, S. Silva, F. Carrasco, P. Sanchez, C. Hervias, and R. Ramirez, Universidad de Chile; G. Pignata, M. Cifuentes, Y. Apostolovski, and M. Vidal, Universidad Andres Bello; F. Aros, Pontificia Universidad Catolica de Chile; B. Conuel, Wesleyan University; G. Folatelli, IPMU, University of Tokyo; and D. Reichart, K. Ivarsen, J. Haislip, A. Crain, D. Foster, M. Nysewander, and A. LaCluyze, University of North Carolina at Chapel Hill, on behalf of the CHASE project (which is part of the Millennium Center for Supernova Science collaboration), report the discovery of an apparent supernova (mag approximately 17.8) on an unfiltered image taken on Feb. 3.27 UT with the 0.41-m 'PROMPT 1' telescope located at Cerro Tololo. The new object is located at R.A. = 10h58m14s.99 +/- 0".2, Decl. = -46°34'31".5 +/- 0".2 (equinox 2000.0). The variable was erroneously designated PSN J0581499-4634315 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2012bc based on the spectroscopic confirmation reported below. Additional CHASE magnitudes for 2012bc: Jan. 25.18, [18.0; Feb. 4.07, 17.7; 21.10, 18.3].

N. Morrell, Las Campanas Observatory; J. Anderson, Universidad de Chile; G. Pignata, Universidad Andres Bello; and G. Folatelli, Kavli IPMU, University of Tokyo, on behalf of the Millenium Center for Supernova Science and Carnegie Supernova Project collaboration, report on optical spectroscopy (range 370-940 nm) obtained on Mar. 2 UT with the 6.5-m Magellan II Clay telescope (+ LDSS3). The data were cross-correlated with a library of supernova spectra using the Supernova Identification Code (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024). PSN J0581499-4634315 = SN 2012bc is a normal type-Ia supernova at approximately 3 weeks past maximum brightness.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars.

(C) Copyright 2012 CBAT 2012 March 21 (CBET 3060) Daniel W. E. Green

Supernova 2012bc
Descubierta el 03/02/2012, Magnitud 17.8.
Encontrada en galaxia anónima, R.A. = 10h58m14s.99, Decl. = -46°34'31".5.
Localización 0" Este y 0" Norte del centro de galaxia anónima.
(cerca de NGC 3482)

Tipo Ia. PGC 33025.
Electronic Telegram No. 3059


Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge,MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2012bb in PGC 39723.
G. Pignata, M. Cifuentes, Y. Apostolovski, and M. Vidal, Universidad Andres Bello; J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, and R. Cartier, F. Forster, S. Silva, F. Carrasco, P. Sanchez, C. Hervias, and R. Ramirez, Universidad de Chile; F. Aros, Pontificia Universidad Catolica de Chile; B. Conuel, Wesleyan University; G. Folatelli, IPMU, University of Tokyo; and D. Reichart, K. Ivarsen, J. Haislip, A. Crain, D. Foster, M. Nysewander, and A. LaCluyze, University of North Carolina at Chapel Hill, on behalf of the CHASE project (which is part of the Millennium Center for Supernova Science collaboration), report the discovery of an apparent supernova (mag approximately 15.9) on an unfiltered image taken on Feb. 2.19 UT with the 0.41-m 'PROMPT 5' telescope located at Cerro Tololo. The new object is located at R.A. = 12h19m51s.97 +/- 0".2, Decl. = -36°27'26".1 +/- 0".2 (equinox 2000.0), which is about 11".4 east and 8".0 north of the center of the galaxy PGC 39723 (= ESO 380-14). The variable was designated PSN J12195197-3627261 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2012bb based on the spectroscopic confirmation reported below. Additional CCD magnitudes for 2012bb: 2011 May 16.15, [18.5 (CHASE); 2012 Feb. 3.14, 15.6 (CHASE); 10.802, 15.7: (J. Brimacombe, Cairns, Australia; 41-cm RCOS telescope + STL6K camera + infrared filter, bandpass > 700 nm; poor seeing/transparency; position end figures 52s.02, 27".0; marginal, uncertain detection); 11.545, 15.8 (Brimacombe; position end figures 52s.01, 26".6; image posted at URL http://www.flickr.com/photos/43846774@N02/6860587117/). Brimacombe notes that there is an area of brightening at the approximate position of 2012bb in a Digitized Sky Survey image.

N. Morrell, Las Campanas Observatory; J. Anderson, Universidad de Chile; G. Pignata, Universidad Andres Bello; and G. Folatelli, Kavli IPMU, University of Tokyo, on behalf of the Millenium Center for Supernova Science and Carnegie Supernova Project collaboration, report on optical spectroscopy (range 370-940 nm) obtained on Mar. 2 UT with the 6.5-m Magellan II Clay telescope (+ LDSS3). The data were cross-correlated with a library of supernova spectra using the Supernova Identification Code (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024). PSN J12195197-3627261 = SN 2012bb is a type-IIP supernova at about 2-3 weeks after maximum light.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars.

(C) Copyright 2012 CBAT 2012 March 21 (CBET 3059) Daniel W. E. Green

Supernova 2012bb
Descubierta el 02/02/2012, Magnitud 15.9.
Encontrada en ESO 380-014, R.A. = 12h19m51s.97, Decl. = -36°27'26".1.
Localización 11".4 Este y 8".0 Norte del centro de ESO 380-014.
Tipo IIP. PGC39723.
Electronic Telegram No. 3058


Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge,MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2012ba in ESO 328-46.
G. Pignata, M. Cifuentes, Y. Apostolovski, and M. Vidal, Universidad Andres Bello; J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, F. Forster, S. Silva, F. Carrasco, P. Sanchez, C. Hervias, and R. Ramirez, Universidad de Chile; F. Aros, Pontificia Universidad Catolica de Chile; B. Conuel, Wesleyan University; G. Folatelli, IPMU, University of Tokyo; and D. Reichart, K. Ivarsen, J. Haislip, A. Crain, D. Foster, M. Nysewander, and A. LaCluyze, University of North Carolina at Chapel Hill, on behalf of the CHASE project (which is part of the Millennium Center for Supernova Science collaboration), report the discovery of an apparent supernova (mag approximately 16.6) on a unfiltered image taken on Jan. 21.33 UT with the 0.41-m 'PROMPT 1' telescope located at Cerro Tololo. The new object is located at R.A. = 15h22m25s.12 +/- 0".2, Decl. = -38°12'04".2 +/- 0".2 (equinox 2000.0), which is about 7".3 east and 6".3 south of the center of the galaxy ESO 328-46. The variable was designated PSN J15222512-3812042 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2012ba based on the spectroscopic confirmation reported below. Additional CCD magnitudes for 2012ba: 2011 Jan. 12.34-May 9.21, [20.5 (stack of fourteen 80-s CHASE images); May 15.20, [17.5 (CHASE); 2012 Jan. 24.29, 16.3 (CHASE); Feb. 1.706, 15.9 (J. Brimacombe, Cairns, Australia; 41-cm RCOS telescope + STL6K camera + infrared filter, bandpass > 700 nm; position end figures 25s.17, 03".9; image posted at http://www.flickr.com/photos/43846774@N02/6805173999/).

N. Morrell, Las Campanas Observatory; J. Anderson, Universidad de Chile; G. Pignata, Universidad Andres Bello; and G. Folatelli, Kavli IPMU, University of Tokyo, on behalf of the Millenium Center for Supernova Science and Carnegie Supernova Project collaboration, report on optical spectroscopy (range 370-940 nm) obtained on Mar. 2 UT with the 6.5-m Magellan II Clay telescope (+ LDSS3). The data were cross-correlated with a library of supernova spectra using the Supernova Identification Code (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024), indicating that PSN J15222512-3812042 = SN 2012ba is a type-Ic supernova past maximum light. SNID provides an average age of +15 days, with an uncertainty of 17 days. Considering that the time of discovery was Jan. 21, the most probable age is greater than two weeks after maximum. Strong nebular emission from an underlying H II region at the redshift of the host galaxy is present in the spectrum, as well as Na I absorption from the host with an equivalent width of 0.1 nm. Based on the distance modulus provided by the NASA/IPAC Extragalactic Database (Koribalski et al. 2004, A.J. 128, 16) and the reported discovery magnitude of 15.9, the absolute brightness at discovery was magnitude -18.5; the latter is an upper limit to the intrinsic luminosity, considering the correction for dust extinction. Depending on the phase of discovery, this could have been a very luminous event.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars.

(C) Copyright 2012 CBAT 2012 March 21 (CBET 3058) Daniel W. E. Green

Supernova 2012ba
Descubierta el 21/01/2012, Magnitud 16.6.
Encontrada en ESO 328-46, R. A. = 15h22m25s.12, Decl. = -38°12'04".2.
Localización 7".3 Este y 6".3 Sur del centro de ESO 328-46.
Tipo Ic. PGC 54877.
Electronic Telegram No. 2998


Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge,MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2012R in ESO 385-12.
G. Pignata, M. Cifuentes, Y. Apostolovski, and M. Vidal, Universidad Andres Bello; J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, F. Forster, S. Silva, F. Carrasco, P. Sanchez, C. Hervias, and R. Ramirez, Universidad de Chile; C. Farias and F. Aros, Pontificia Universidad Catolica de Chile; B. Conuel, Wesleyan University; G. Folatelli, IPMU, University of Tokyo; and D. Reichart, K. Ivarsen, J. Haislip, A. Crain, D. Foster, M. Nysewander, and A. LaCluyze, University of North Carolina at Chapel Hill, on behalf of the CHASE project (which is part of the Millennium Center for Supernova Science collaboration), report the discovery of an apparent supernova (mag approximately 17.2) on an unfiltered image taken on Jan. 5.32 UT with the 0.41-m 'PROMPT 4' telescope located at Cerro Tololo. The new object is located at R.A. = 14h21m14s.21 +/- 0".2, Decl. = -36°13'10".7 +/- 0".2 (equinox 2000.0), which is about 16".4 west and 25".0 north of the center of the galaxy ESO 385-12. The variable was designated PSN J14211421-3613107 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2012R based on the spectroscopic confirmation reported below. Additional CCD magnitudes for 2012R (unfiltered unless noted otherwise): 2010 Jan. 22.34-2011 June 11.08, [20.0 (CHASE; stack of eleven 80-s images); 2011 June 11.08, [18.5 (CHASE); 2012 Jan. 7.30, 17.1 (CHASE); 11.753, R = 18.2 (Joseph Brimacombe, Cairns, Australia; 44-cm telescope + U16 camera + red filter; position end figures 14s.24, 10".6). An image taken by Brimacombe on 2012 Jan. 8.769 with a 41-cm RCOS telescope (+ STL6K camera + infrared filter; range > 700 nm) yields position end figures 14s.25, 10".8; his image is posted at http://www.flickr.com/photos/43846774@N02/6663127901/.

N. Morrell, Las Campanas Observatory, on behalf of the Carnegie Supernova Project, reports that optical spectroscopy (range 430-1000 nm), obtained on 2012 Jan. 16 UT with the 6.5-m Magellan I (Baade) telescope (+ IMACS), shows that PSN J14211421-3613107 = SN 2012R is an evolved type-II supernova. SNID (Blondin and Tonry, 2007, Ap.J. 666, 1024) gives good matches with a number of type-II-P events between 1 and 2 months after maximum.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars.

(C) Copyright 2012 CBAT 2012 January 26 (CBET 2998) Daniel W. E. Green

Supernova 2012R
Descubierta el 05/01/2012, Magnitud 17.2.
Encontrada en ESO 385-012, R.A. = 14h21m14s.21, Decl. = -36°13'10".7.
Localización 16".0 Este y 25".0 Norte del centro de ESO 385-12.
Tipo II. PGC 51289.
Electronic Telegram No. 2994


Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge,MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2012Q in ESO 366-18.
J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, F. Forster, S. Silva, F. Carrasco, P. Sanchez, C. Hervias, and R. Ramirez, Universidad de Chile; G. Pignata, M. Cifuentes, Y. Apostolovski, and M. Vidal, Universidad Andres Bello; C. Farias and F. Aros, Pontificia Universidad Catolica de Chile; B. Conuel, Wesleyan University; G. Folatelli, IPMU, University of Tokyo; and D. Reichart, K. Ivarsen, J. Haislip, A. Crain, D. Foster, M. Nysewander, and A. LaCluyze, University of North Carolina at Chapel Hill, on behalf of the CHASE project (which is part of the Millennium Center for Supernova Science collaboration), report the discovery of an apparent supernova (mag approximately 17.0) on unfiltered images taken on Jan. 14.13 and 16.13 UT with the 0.41-m 'PROMPT 3' telescope located at Cerro Tololo. The new object is located at R.A. = 6h46m26s.64 +/- 0".2, Decl. = -36°53'13".4 +/- 0".2 (equinox 2000.0), which is about 0".6 east and 1".6 north of the center of the galaxy ESO 366-18. Nothing is visible at this position on archival images taken on 2011 Nov. 6.16 (limiting mag 18.0) or in a stack of thirteen 80-s images taken between 2011 Jan. 8.12 and Nov. 5.16 (limiting mag 20.1). The variable was designated PSN J06462664-3653134 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2012Q based on the spectroscopic confirmation reported below.

N. Elias-Rosa, Institut de Ciencies de l'Espai, Consejo Superior de Investigaciones Cientificas; and G. Pignata, Universidad Andres Bello, on behalf of a larger collaboration, report that a spectrum of PSN J06462664-3653134 = SN 2012Q, obtained on Jan. 22.21 UT with the European Southern Observatory's New Technology Telescope (+ EFOSC2; range 365-930 nm; resolution 1.8 nm), shows it to be a type-Ic supernova. The best fit to this spectrum found by GELATO (Harutyunyan et al. 2008, A.Ap. 488, 383; available at website URL https://gelato.tng.iac.es/login.cgi) suggests that PSN J06462664-3653134 is similar to the type-Ic supernova 1996bx at a couple of weeks after explosion, if a redshift of 0.031669 for the host galaxy (Theureau et al. 1998, A.Ap. Suppl. 130, 333; via NED) is assumed. The overall shape of the continuum is very red, implying that the supernova is heavily extinguished [E(B-V) about 0.8] by dust. In addition, the spectrum shows a strong, narrow Na I D absorption at the velocity of the host galaxy with an equivalent width of 0.46 nm. The Schlegel et al. (1998, Ap.J. 500, 525) dust maps indicate a value for Galactic reddening of E(B-V) = 0.146 mag.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars.

(C) Copyright 2012 CBAT 2012 January 25 (CBET 2994) Daniel W. E. Green

Supernova 2012Q
Descubierta el 14/01/2012, Magnitud 17.0.
Encontrada en ESO 366-18, R.A. = 6h46m26s.64, Decl. = -36°53'13".4.
Localización 0".6 Este y 1".6 Norte del centro de ESO 366-18.
Tipo Ic. PGC 19577.
Electronic Telegram No. 2984


Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge,MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2012H in IC 411.
G. Pignata, M. Cifuentes, Y. Apostolovski, and M. Vidal, Universidad Andres Bello; J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, F. Forster, S. Silva, F. Carrasco, P. Sanchez, C. Hervias, and R. Ramirez, Universidad de Chile; C. Farias and F. Aros, Pontificia Universidad Catolica de Chile; B. Conuel, Wesleyan University; G. Folatelli, IPMU, University of Tokyo; and D. Reichart, K. Ivarsen, J. Haislip, A. Crain, D. Foster, M. Nysewander, and A. LaCluyze, University of North Carolina at Chapel Hill, on behalf of the CHASE project (which is part of the Millennium Center for Supernova Science collaboration), report the discovery of an apparent supernova (mag approximately 16.7) on an unfiltered image taken on Jan. 10.16 UT with the 0.41-m 'PROMPT 3' telescope located at Cerro Tololo. The new object is located at R.A. = 5h20m14s.94 +/- 0".2, Decl. = -25°18'56".4 +/- 0".2 (equinox 2000.0), which is about 49".7 west and 31".6 north of the center of the galaxy IC 411. The variable was designated PSN J05201494-2518563 when it was posted at the Central Bureau's TOCP webpage (because Pignata gave a slightly different position when posting there) and is here designated SN 2012H based on the spectroscopic confirmation reported below. Additional CCD magnitudes for 2012H (unfiltered unless noted otherwise): 2011 Jan. 6.12-Oct. 11.30, [19.5 (stacked CHASE images); Nov. 3.13, [18.0 (CHASE); 2012 Jan. 11.08, 16.5 (CHASE); 14.232, 16.7 (Joseph Brimacombe, Cairns, Australia; remotely using a 51-cm RCOS telescope + STL11K camera + luminance filter at the New Mexico Skies Observatory near Mayhill, NM, U.S.A.; position end figures 14s.93, 56".6; image posted at website URL http://www.flickr.com/photos/43846774@N02/6697768647/); 14.264, 17.1 (L. Elenin, Lyubertsy, Russia; three stacked 300-s images remotely taken at the ISON-NM Observatory near Mayhill with a 0.45-m f/2.8 telescope + KAF09000 CCD; limiting mag about 20.1; position end figures 14s.94, 56".1, uncertainty given as +/- 0".1; UCAC3 reference stars; image posted at website URL http://spaceobs.org/images/TOCP/PSNJ05201494-2518563-20120114.png).

M. R. Drout, D. Milisavljevic, E. Berger, N. Sanders, and A. M. Soderberg, Harvard University, report on low-dispersion spectra (range 330-850 nm) taken on Jan. 19 UT with the 6.5-m MMT (+ Blue Channel). PSN J05201494-2518563 = SN 2012H is a type-Ia supernova near maximum light. Comparison with a library of supernova spectra using the "Supernova Identification" tool (SNID; Blondin and Tonry 2007, Ap.J., 666, 1024) provides a good match with supernova 1994D at three days after maximum. Using the host galaxy (IC 411) redshift of z = 0.03185 (da Costa et al. 1991, Ap.J. Suppl. 75, 935), the velocity of the Si II 635.5-nm feature is estimated to be approximately 11000 km/s.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars.

(C) Copyright 2012 CBAT 2012 January 20 (CBET 2984) Daniel W. E. Green

Supernova 2012H
Descubierta el 01/01/2012, Magnitud 16.7.
Encontrada en
IC 411 , R.A. = 5h20m14s.94, Decl. = -25°18'56".4.
Localización 49".7 Oeste y 31".6 Norte del centro de IC 411 .
Tipo Ia. PGC 17130 .