Lista de Supernovas

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Electronic Telegram No. 2622


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 2010lv.
G. Pignata and M. Cifuentes, Universidad Andres Bello; J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, F. Forster, S. Silva, and F. Carrasco, Universidad de Chile; P. Gonzalez, 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, report the discovery of an apparent supernova (mag approximately 17.3) on an unfiltered image taken on 2010 Dec. 31.33 UT with the 0.41-m 'PROMPT 4' telescope located at Cerro Tololo. The new object, which is also present at mag approximately 17.3 in images taken on 2010 Dec. 26.30 and 2011 Jan. 2.27, is located at R.A. = 13h19m42s.89 +/- 0".2, Decl. = -33°15'18".5 +/- 0".2 (equinox 2000.0), which is about 1".2 east and 4".9 north of the center of the presumed host galaxy. Nothing is visible at this position on a stack of thirty-one 40-s archival images taken between 2009 June 2.14 and 2010 July 28.08 (limiting mag 21.0).

(C) Copyright 2010 CBAT 2011 January 04 (CBET 2622) Daniel W. E. Green

Supernova 2010lv
Descubierta el 31/12/2010, Magnitud 17.3.
Encontrada en galaxia anónima,
R.A. = 13h19m42s.89, Decl. = -33°15'18".5
.
Localización 1".2 Este y 4".9 Norte del centro de galaxia anónima.
Tipo IIb.
PGC 46443.

Electronic Telegram No. 2615


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 2010ls.
J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, F. Forster, S. Silva, and F. Carrasco, Universidad de Chile; G. Pignata and M. Cifuentes, Universidad Andres Bello; P. Gonzalez, 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, report the discovery of an apparent supernova (mag approximately 16.2) on an unfiltered image taken on 2010 Dec. 29.30 UT with the 0.41-m 'PROMPT 4' telescope located at Cerro Tololo. The new object, which is also present at mag approximately 16.1 in an image taken on 2010 Dec. 30.28, is located at R.A. = 13h40m51s.56 +/- 0".2, Decl. = -48°23'03".1 +/- 0".2 (equinox 2000.0). Nothing is visible at this position on archival images taken on 2010 May 12.29 and July 3.18 (limiting mag 18.0).
M. Miluzio, S. Benetti, and F. Bufano, Istituto Nazionale di Astrofisica, Osservatorio Astronomico di Padova; A. Pastorello, Queen's University, Belfast; and G. Pignata, Universidad Andres Bello, on behalf of a larger collaboration, report on spectroscopic observations (range 340-800 nm) of 2010ls obtained on 2010 Dec. 31.32 UT with the EFOSC2 spectrograph mounted on the New Technology Telescope at the European Southern Observatory. The spectrum of 2010ls is that an evolved type-IIb supernova; from a comparison with a library of supernova spectra performed with the "GELATO" code (Harutyunyan et al. 2008, A.Ap. 488, 383; available at https://gelato.tng.iac.es/login.cgi), 2010ls is found to be most similar to SN 1993J at about two months after maximum light.

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

(C) Copyright 2010 CBAT 2011 January 01 (CBET 2615) Daniel W. E. Green

Supernova 2010ls
Descubierta el 29/12/2010, Magnitud 16.2.
Encontrada cerca de PGC 3085578,
R.A. = 13h40m51s.56, Decl. = -48°23'03".1
.
Localización al Este del centro de galaxia anónima.
Tipo IIb.
PGC 48390.

Electronic Telegram No. 2603


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 2010lm ESO 162-2.
G. Pignata and M. Cifuentes, Universidad Andres Bello; J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, F. Forster, S. Silva, and F. Carrasco, Universidad de Chile; P. Gonzalez, 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, report the discovery of an apparent supernova (mag approximately 18.1 +/- 0.5) on an unfiltered image taken on Dec. 20.22 UT with the 0.41-m 'PROMPT 4' telescope located at Cerro Tololo. The new object, which is also present at mag approximately 17.0 +/- 0.3 in an image taken on Dec. 22.25, is located at R.A. = 10h03m57s.35 +/- 0".2, Decl. = -27°38'30".3 +/- 0".2 (equinox 2000), which is about 2".8 west and 0".9 south of the center of the presumed host galaxy. Nothing is visible at this position on archival images taken on Dec. 9.31 (limiting mag 18.5) and in a stack of seventeen 400-s images taken between 2009 Nov. 8.33 and 2010 Nov. 25.26 (limiting mag 20.7).

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

(C) Copyright 2010 CBAT 2010 December 23 (CBET 2603) Daniel W. E. Green

Supernova 2010lm
Descubierta el 20/12/2010, Magnitud 17.0.
Encontrada en galaxia anónima,
R.A. = 10h03m57s.35, Decl. = -27°38'30".3
.
Localización 2''.8 Oeste y 0".9 Sur del centro de galaxia anónima.
Tipo Ia.
PGC 29179.

Electronic Telegram No. 2598


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 2010kw ESO 162-2.
J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, F. Forster, S. Silva, and F. Carrasco, Universidad de Chile; G. Pignata and M. Cifuentes, Universidad Andres Bello; P. Gonzalez, 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, report the discovery of an apparent supernova (mag approximately 17.0) on an unfiltered image taken on Dec. 17.18 UT with the 0.41-m 'PROMPT 5' telescope located at Cerro Tololo. The new object, which is also present at mag approximately 16.9 in an image taken on Dec. 18.06, is located at R.A. = 6h56m19s.88 +/- 0".2, Decl. = -54°03'47".1 +/- 0".2 (equinox 2000.0), which is about 6".5 west and 5".1 north of the center of the galaxy ESO 162-2. Nothing is visible at this position on archival images taken on Nov. 17.23.

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

(C) Copyright 2010 CBAT 2010 December 20 (CBET 2598) Daniel W. E. Green

Supernova 2010kw
Descubierta el 17/12/2010, Magnitud 16.9.
Encontrada en ESO 162-2,
R.A. = 6h56m19s.88, Decl. = -54°03'47".1.
Localización 6''.7 Oeste y 5".1 Norte del centro de ESO 162-2.
Tipo Indefinida.
PGC 19894.

Electronic Telegram No. 2591


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 2010ku IC 716.
G. Pignata and M. Cifuentes, Universidad Andres Bello; J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, F. Forster, S. Silva, and F. Carrasco, Universidad de Chile; P. Gonzalez, 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, report the discovery of an apparent supernova (mag approximately 16.8) on an unfiltered image taken on Dec. 16.31 UT with the 0.41-m 'PROMPT 1' telescope located at Cerro Tololo. The new object, which is also present at mag approximately 16.6 in an image taken on Dec. 17.33, is located at R.A. = 11h39m04s.78 +/- 0".2, Decl. = -0°12'40".2 +/- 0".2 (equinox 2000.0), which is about 21".7 east and 19".0 south of the center of the galaxy IC 716. Nothing is visible at this position on archival images taken on June 5.98 (limiting mag 18.0) and May 12.04 (limiting mag 18.5).

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

(C) Copyright 2010 CBAT 2010 December 18 (CBET 2591) Daniel W. E. Green

Supernova 2010ku
Descubierta el 16/12/2010, Magnitud 16.6.
Encontrada en IC-716,
R.A. = 11h39m04s.78, Decl. = -00°12'40".2
.
Localización 21''.7 Este y 19".0 Sur del centro de IC-716.
Tipo Indefinida.
PGC 36102.

Electronic Telegram No. 2588


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 2010kt.
J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, F. Forster, and S. Silva, Universidad de Chile; G. Pignata and M. Cifuentes, Universidad Andres Bello; P. Gonzalez, 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, report the discovery of an apparent supernova (mag approximately 16.8 +/- 0.5) in the galaxy cluster NGC 1759 on an unfiltered CCD image taken on Dec. 10.31 UT with the 0.41-m 'PROMPT 1' telescope located at Cerro Tololo. The new object, which is also present a mag approximately 17.0 in images taken on Dec. 12.04 and 13.20, is located at R.A. = 5h00m39s.19 +/- 0".2, Decl. = -38°40'46".1 +/- 0".2 (equinox 2000.0). Nothing is visible at this position on archival images taken on Oct. 15.28 (limiting mag 18.0) and Sept. 7.25 (limiting mag 18.5).
G. Pignata, Universidad Andres Bello; and G. Folatelli, IPMU, University of Tokyo; on behalf of the Millennium Center for Supernova Science, report on an optical spectrogram (range 355-887 nm) of 2010kt obtained on Dec. 13.14 UT with the SOAR telescope (+ Goodman HTS). The spectrum shows 2010kt to be a normal type-Ia supernova at about two weeks after maximum light. Cross- correlation with a library of supernova spectra using the "Supernova Identification" code (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024) provides good matches with spectra of SNe 1989B, 1994D, and 1996X between +12 and +14 days.

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

(C) Copyright 2010 CBAT 2010 December 13 (CBET 2588) Daniel W. E. Green

Supernova 2010kt
Descubierta el 12/12/2010, Magnitud 16.8.
Encontrada en NGC 1759,
R.A. = 05h00m39s.19, Decl. = -38°40'46".1
.
Localización al Este del centro de NGC 1759.
Tipo Ia.
PGC 16547.

Electronic Telegram No. 2545


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 2010jr in ESO 362-18 G.
PPignata and M. Cifuentes, Universidad Andres Bello; J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, F. Forster, and S. Silva, Universidad de Chile; P. Gonzalez, Pontificia Universidad Catolica de Chile; B. Conuel, Wesleyan University; G. Folatelli, IPMU, University of Tokyo; Petr Kubanek, Universidad de Valencia; 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, report the discovery of an apparent supernova (mag approximately 16.2) on an unfiltered image taken on Nov. 12.09 UT with the 0.41-m 'PROMPT 5' telescope located at Cerro Tololo. The new object, which is also present at mag approximately 15.0 in an image taken at Cerro Tololo with the CHASE 50-cm telescope on Nov. 13.11, is located at R.A. = 5h19m34s.47 +/- 0".2, Decl. = -32°39'14".6 +/- 0".2 (equinox 2000.0), which is about 16".8 west and 13".6 north of the center of the galaxy ESO 362-18. Nothing is visible at this position on archival images taken with the "PROMPT 5" telescope on Nov. 6.27 (limiting mag 17.5) and Oct. 23.22 (limiting mag 18.0).

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

(C) Copyright 2010 CBAT 2010 November 14 (CBET 2545) Daniel W. E. Green

Supernova 2010jr
Descubierta el 12/11/2010, Magnitud 16.6.
Encontrada en ESO 362-18,
R.A. = 05h19m34s.47, Decl. = -32°39'14".6
.
Localización 16''.8 Oeste y 13".6 Norte del centro de ESO 362-18.
Tipo Indefinido.
PGC 17103.

Electronic Telegram No. 2544


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 2010jp and 2010jq .
J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, F. Forster, S. Silva, and F. Carrasco, Universidad de Chile; G. Pignata and M. Cifuentes, Universidad Andres Bello; P. Gonzalez, 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, report the discovery of two apparent supernovae on unfiltered images taken on Nov. 11.32 UT with the 0.41-m 'PROMPT 4' telescope located at Cerro Tololo:

SN
2010
UT
R.A. (2000.0)
Decl.
Mag.
Offset
2010jp Nov. 11.32 6 16 30.63 -21 24 36.3 17.2 --
2010jq Nov. 11.32 10 36 36.40 -27 28 44.5 17.2 18".6 E, 0".2 N


The uncertainty in the above positions is stated to be +/- 0".2 in each coordinate. Additional approximate magnitudes for 2010jp, which is located in the field of the merging galaxy IC 2163: Oct. 16.32, [18.5; 22.23, [18.0; Nov. 12.14, 17.4. Additional approximate magnitudes for 2010jq: Apr. 15.08, [18.5; May 13.00, [18.5; Nov. 12.30, 17.1.

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

(C) Copyright 2010 CBAT 2010 November 13 (CBET 2544) Daniel W. E. Green

Supernova 2010jq
Descubierta el 11/11/2010, Magnitud 17.1.
Encontrada en galaxia anónima,
R.A. = 10h36m36s.40, Decl. = -27°28'44".5
.
Localización 18''.6 Este y 0".2 Norte del centro de galaxia anónima.
Tipo Indefinido.
cerca de PGC 31438.

Electronic Telegram No. 2544


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 2010jp and 2010jq .
J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, F. Forster, S. Silva, and F. Carrasco, Universidad de Chile; G. Pignata and M. Cifuentes, Universidad Andres Bello; P. Gonzalez, 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, report the discovery of two apparent supernovae on unfiltered images taken on Nov. 11.32 UT with the 0.41-m 'PROMPT 4' telescope located at Cerro Tololo:

SN
2010
UT
R.A. (2000.0)
Decl.
Mag.
Offset
2010jp Nov. 11.32 6 16 30.63 -21 24 36.3 17.2 --
2010jq Nov. 11.32 10 36 36.40 -27 28 44.5 17.2 18".6 E, 0".2 N


The uncertainty in the above positions is stated to be +/- 0".2 in each coordinate. Additional approximate magnitudes for 2010jp, which is located in the field of the merging galaxy IC 2163: Oct. 16.32, [18.5; 22.23, [18.0; Nov. 12.14, 17.4. Additional approximate magnitudes for 2010jq: Apr. 15.08, [18.5; May 13.00, [18.5; Nov. 12.30, 17.1.

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

(C) Copyright 2010 CBAT 2010 November 13 (CBET 2544) Daniel W. E. Green

Supernova 2010jp
Descubierta el 11/11/2010, Magnitud 18.7.
Encontrada en NGC 2207,
R.A. = 06h16m30s.63, Decl. = -21°24'36".3.

Localización cerca del centro de NGC 2207.
Tipo Indefinido.
PGC 18751 .

Electronic Telegram No. 2514


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 2010ja in NGC 2513.
G. Pignata, and M. Cifuentes, Universidad Andres Bello; J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, and F. Forster, Universidad de Chile; P. Gonzalez, Pontificia Universidad Catolica de Chile; B. Conuel, Wesleyan University; G. Folatelli, Institute for the Physics and Mathematics of the Universe (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, report the discovery of an apparent supernova (mag approximately 17.9) on an unfiltered image taken on Oct. 15.35 UT with the 0.41-m 'PROMPT 1' telescope located at Cerro Tololo. The new object is located at R.A. = 8h02m28s.39 +/- 0".2, Decl. = +9°23'40".9 +/- 0".2 (equinox 2000.0), which is about 55" east and 68" south of the center of the galaxy NGC 2513; nothing is visible at this position on stacked archival images taken between Jan. 8.13 and Mar. 19.04 (limiting mag 19.5), but 2010ja is visible at mag approximately 18.0 on images taken on Oct. 16.34 and 17.33.
N. Morrell, Las Campanas Observatory; and G. Folatelli, IPMU, University of Tokyo, reports on spectroscopic observations (range 330-950 nm) of 2010ja, obtained on Oct. 22.4 UT with the Boller and Chivens spectrograph attached to the 2.5-m du Pont telescope at Las Campanas Observatory. The low-signal-noise spectrum of 2010ja is that of an evolved type-Ia supernova; cross-correlation with a library of supernova using SNID (Blondin and Tonry 2007, Ap.J. 666, 1024) shows 2010? to be most similar to SN 1991bg at about 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 2010 CBAT 2010 October 27 (CBET 2514) Daniel W. E. Green

Supernova 2010ja
Descubierta el 15/10/2010, Magnitud 17.9.
Encontrada en NGC 2513,
R.A. = 08h02m28s.39, Decl. = +09°23'40".9.
Localización 55'' Este y 68" Sur del centro de NGC 2513.
Tipo Ia.
PGC 22555.

Electronic Telegram No. 2508


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 2010iy in ESO 281-14.
J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, and F. Forster, Universidad de Chile; G. Pignata and M. Cifuentes, Universidad Andres Bello; P. Gonzalez, 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, report the discovery of an apparent supernova (mag approximately 17.7) on an unfiltered image taken on Oct. 18.04 UT with the 0.41-m 'PROMPT 5' telescope located at Cerro Tololo. The new object, which is also present at mag approximately 16.7 in an image taken on Oct. 19.00, is located at R.A. = 18h36m36s.91 +/- 0".2, Decl. = -47°03'15".7 +/- 0".2 (equinox 2000.0), which is about 3".1 west and 0".5 south of center of the galaxy ESO 281-14. Nothing is visible at this position on archival images taken on Sept. 22.09 (limiting mag 18.0) and Sept. 9.14 (limiting mag 18.5).

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

(C) Copyright 2010 CBAT 2010 October 19 (CBET 2508) Daniel W. E. Green

Supernova 2010iy
Descubierta el 18/10/2010, Magnitud 16.7 antes del maximo.
Encontrada en ESO 281-14,
R.A. = 18h36m36s.91, Decl. = -47°03'15".7
.
Localización 3''.1 Oeste y 0".5 Sur del centro de ESO 281-14.
Tipo Indefinido.
PGC 62119.

Electronic Telegram No. 2503


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 2010iu and 2010iv.
J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, and F. Forster, Universidad de Chile; G. Pignata and M. Cifuentes, Universidad Andres Bello; P. Gonzalez, Pontificia Universidad Catolica de Chile; B. Conuel, Wesleyan University; G. Folatelli, Institute for the Physics and Mathematics of the Universe (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, report the discovery of an apparent supernova (mag approximately 17.4) on unfiltered images taken on Oct. 15.26 and 16.09 UT with the 0.41-m 'PROMPT 1' telescope located at Cerro Tololo. The object, designated SN 2010iv, is located at R.A. = 4h03m52s.23 +/- 0".2, Decl. = -43°25'38".5 +/- 0".2 (equinox 2000.0); it is right on the top of the small galaxy and completely dominating the visible light. Nothing is visible at this position on a stack of seventeen 40-s archival images taken between 2009 Nov. 5.13 and 2010 Aug. 13.28 (limiting mag 19.5).
G. Pignata, Universidad Andres Bello; and G. Folatelli, IPMU, University of Tokyo, on behalf of the Millennium Center for Supernova Science, report on optical spectroscopy (range 355-890 nm) of 2010iv (see above) and the object announced on CBET 2499 (and now designated 2010iu), obtained with the SOAR 4.3-m telescope (+ Goodman HTS) on Oct. 16.3 UT. The spectra show both objects to be normal type-Ia supernovae, a few days before maximum. Following cross-correlation with a library of supernova spectra using SNID (Blondin and Tonry 2007, Ap.J. 666, 1024), 2010iv is found to be most similar to SN 2003du at three days before maximum; SNID also provides a best-fit redshift of 0.074 for 2010iv. SN 2010iu is most similar to SN 1992A at five days before maximum (via SNID). The Si II 597.2-nm line appears stronger in SN 2010iu than in SN 1992A. SNID also provides a best-fit redshift of 0.040 for SN 2010iu.

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

(C) Copyright 2010 CBAT 2010 October 17 (CBET 2503) Daniel W. E. Green

Supernova 2010iv
Descubierta el 15/10/2010, Magnitud 17.4 antes del maximo.
Encontrada en galaxia anónima,
R.A. = 04h03m52s.23, Decl. = -43°25'38".5
.
Localización
en una galaxia anónima.
Tipo Ia.
cerca de PGC 14391.

Electronic Telegram No. 2499


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 2010iu near NGC 212.
G. Pignata and M. Cifuentes, Universidad Andres Bello; J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, and F. Forster, Universidad de Chile; P. Gonzalez, 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, report the discovery of an possible supernova (mag approximately 17.2) on an unfiltered image taken on Oct. 7.27 UT with the 0.41-m 'PROMPT 5' telescope located at Cerro Tololo. The new object, which is also present at mag approximately 16.7 in an image taken on Oct. 15.3, is located at R.A. = 0h40m02s.48 +/- 0".2, Decl. = -56°09'29".9 +/- 0".2 (equinox 2000.0). Nothing is visible at this position on archival images taken on Sept. 29.18 (limiting mag 18.5) and Sept. 16.22 (limiting mag 18.0). Several galaxies are present in the image, which make difficult any host identification.

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

(C) Copyright 2010 CBAT 2010 October 16 (CBET 2499) Daniel W. E. Green

Supernova 2010iu
Descubierta el 07/10/2010, Magnitud 16.7 antes del maximo.
Encontrada en NGC 212,
R.A. = 00h40m02s.48, Decl. = -56°09'29".9
.
Localización
cerca del centro de NGC 212.
Tipo Ia.
PGC 02417.

Electronic Telegram No. 2494


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 2010ir in ESO 491-12.
J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, G. Folatelli, R. Cartier, and F. Forster, Universidad de Chile; G. Pignata and M. Cifuentes, Universidad Andres Bello; P. Gonzalez, Pontificia Universidad Catolica de Chile; B. Conuel, Wesleyan University; 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, report the discovery of an apparent supernova (mag approximately 16.6) on an unfiltered image taken on Oct. 9.35 UT with the 0.41-m 'PROMPT 4' telescope located at Cerro Tololo. The new object, which is also present in images taken on Oct. 12.27 (at mag approximately 16.8), is located at R.A. = 6h57m23s.79 +/- 0".1, Decl. = -24°43'10".5 +/- 0".1 (equinox 2000), which is about 11".8 west and 26".1 north of the center of the galaxy ESO 491-12. Nothing is visible at this position on archival images taken on Aug. 27.40 (limiting mag 18.0) and Feb. 11.17 (limiting mag 18.5).

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

(C) Copyright 2010 CBAT 2010 October 13 (CBET 2494) Daniel W. E. Green

Supernova 2010ir
Descubierta el 09/10/2010, Magnitud 16.6.
Encontrada en ESO 491-12,
R.A. = 06h57m23s.79, Decl. = -24°43'10".5.
Localización 11''.8 Oeste y 26'.1' Norte del centro de ESO 491-12.
Tipo Indefinido.
PGC 19920.

Electronic Telegram No. 2482


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 2010il in NGC 6922 and variable star in NGC 1511 .
J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, S. Silva, G. Folatelli, R. Cartier, F. Forster, and S. Marchi, Universidad de Chile; G. Pignata and M. Cifuentes, Universidad Andres Bello; B. Conuel, Wesleyan University; 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, report the discovery of two apparent supernovae -- one of which appears to be a luminous blue variable in Aquila, from spectroscopy.
SN 2010il was at magnitude approximately 16.4 on an unfiltered image taken on Sept. 29.10 UT with the 0.41-m 'PROMPT 5' telescope located at Cerro Tololo, and at mag approximately 16.3 in an image taken on Sept. 30.11. SN 2010il is located at R.A. = 20h29m53s.12 +/- 0".1, Decl. = -2°11'24".7 +/- 0".1 (equinox 2000.0), which is about 3".3 east and 3".9 north of the center of the galaxy NGC 6922. Nothing is visible at this position on archival images taken on Sept. 18.15 (limiting mag 18.5) and 10.09 (limiting mag 18.0).
The suspected supernova in NGC 1511 was at magnitude approximately 15.9 on an unfiltered image taken on Sept. 29.25 UT with the 0.41-m 'PROMPT 4' telescope located at Cerro Tololo, and at mag approximately 15.6 in an image taken on Sept. 30.11; the variable is located at R.A. = 3h59m38s.07 +/- 0".1, Decl. = -67°37'54".6 +/- 0".1 (equinox 2000.0), which is about 6".3 east and 8".5 north of the center of the galaxy NGC 1511. Nothing is visible at this position on archival images taken on Sept. 6.39 and 18.38 (limiting mag 18.0).
N. Morrell, Las Campanas Observatory, Carnegie Supernova Project; and I. Botti and P. Lopez, Universidad de Chile, report optical spectroscopy (range 364-920 nm) of the CHASE candidates in NGC 1511 and NGC 6922 obtained on Sept. 30 UT with the Las Campanas 2.5-m du Pont telescope (+ WFCCD). The variable in NGC 1511 shows a blue continuum with strong superimposed Balmer emission lines, suggesting this may be the outburst of a luminous blue variable. SN 2010il is a type-Ib/c supernova similar to SN 1999ex around maximum light; cross-correlation with a library of supernova spectra using the Supernova Identification code (Blondin and Tonry, 2006, Ap.J. 666, 1024) provides an excellent match for 2010il to the spectrum of SN 1999ex at maximum brightness.

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

(C) Copyright 2010 CBAT 2010 October 06 (CBET 2482) Daniel W. E. Green

Supernova 2010il
Descubierta el 30/09/2010, Magnitud 16.3.
Encontrada en NGC 6922,
R.A. = 20h29m53s.12, Decl. = -2°11'24".7.
Localización 3''.3 Este y 3'.9' Norte del centro de NGC 6922.
Tipo Ib/c.
PGC 64814.

Electronic Telegram No. 2471


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 2010ih near NGC 2325.
G. Pignata and M. Cifuentes, Universidad Andres Bello; J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, S. Silva, G. Folatelli, R. Cartier, F. Forster, and S. Marchi, Universidad de Chile; B. Conuel, Wesleyan University; 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, report the discovery of an apparent supernova at mag approximately 13.3 on an unfiltered CCD image taken on Sept. 29.31 UT with the 0.41-m 'PROMPT 5' telescope located at Cerro Tololo. The new object, which is also present in images taken on Sept. 16.38 (at mag approximately 12.8) and Sept. 30.27 (mag approximately 13.5), is located at R.A. = 7h02m43s.63 +/- 0".1, Decl. = -28°37'25".2 +/- 0".1 (equinox 2000.0), which is about 42".5 east 265" north of center of the galaxy NGC 2325 (given the large distance from the host, the membership is not completely secure). Nothing is visible at this position on archival images taken on Feb. 23.07 (limiting mag 17.5) and Jan. 14.18 (limiting mag 18.0).

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

(C) Copyright 2010 CBAT 2010 October 01 (CBET 2471) Daniel W. E. Green

Supernova 2010ih
Descubierta el 16/09/2010, Magnitud 13.5.
Encontrada en NGC 2325,
R.A. = 07h02m43s.63, Decl. = -28°37'25".2
.
Localización 42''.5 Este y 265'' Norte del centro de NGC 2325.
Tipo Ia.
cerca de PGC 20047.

Electronic Telegram No. 2456


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 2010hv.
G. Pignata and M. Cifuentes, Universidad Andres Bello; J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, S. Silva, G. Folatelli, R. Cartier, F. Forster, and S. Marchi, Universidad de Chile; B. Conuel, Wesleyan University; 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, report the discovery of an apparent supernova (mag approximately 15.6) on an unfiltered image taken on Aug. 28.07 UT with the 0.41-m 'PROMPT 3' telescope located at Cerro Tololo. The new object is located at R.A. = 23h24m25s.30 +/- 0".1, Decl. = -19°02'14".4 +/- 0".1 (equinox 2000.0), which is on top of the nucleus of the galaxy 2MASX J23242536-1902139. Nothing is visible at this position on archival images taken on Aug. 2.15 (limiting mag 18.5), but 2010hv is also present in images taken on Aug. 18.18 (mag approximately 15.1), on Aug. 24.11 (mag approximately 15.4), and Aug. 31.10 (mag approximately 15.6).
An optical spectrum (range 360-920 nm) obtained with the Las Campanas 2.5-m du Pont telescope (+ WFCCD) on Sept. 14.2 UT by N. Morrell, Las Campanas Observatory, Carnegie Supernova Project; and Ismael Botti and Paula Lopez, Universidad de Chile, reveals that 2010hv is a type-II supernova, showing a blue continuum with the characteristic P-Cyg profiles in the Balmer lines and strong galactic contamination. A redshift of 7279 km/s (s.d. 13 km/s) is derived from an average of ten emission lines from the underlying H II region, superimposed on the supernova spectrum. Considering that redshift, the minimum of the H-beta absorption is blueshifted by 7400 km/s. Interstellar Na I absorption at the same redshift is observed with an E.W. of 0.08 nm. Cross-correlation with a library of supernova spectra using the Supernova Identification tool (Blondin and Tonry 2007, Ap.J. 666, 1024) suggests that this supernova is of subtype II-p with ages ranging from 15 to 40 days.

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

(C) Copyright 2010 CBAT 2010 September 15 (CBET 2456) Daniel W. E. Green

Supernova 2010hv
Descubierta el 28/08/2010, Magnitud 15.6.
Encontrada en galaxia anónima,
R.A. = 23h24m25s.30, Decl. = -19°02'14".4
.
Localización en una galaxia anónima.
Tipo IIP.
cerca de PGC 71357.

Electronic Telegram No. 2388


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 2010gp in NGC 6240.
J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, S. Silva, G. Folatelli, R. Cartier, F. Forster, and S. Marchi, Universidad de Chile; G. Pignata and M. Cifuentes, Universidad Andres Bello; B. Conuel, Wesleyan University; 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, report the discovery of an apparent supernova (mag approximately 17.5 +/- 0.4) on an unfiltered image taken on July 14.10 UT with the 0.41-m 'PROMPT 1' telescope located at Cerro Tololo. The new object, which was confirmed at mag approximately 15.5 on July 22.97, is located at R.A. = 16h52m57s.39 +/- 0".1, Decl. = +2°23'16".4 +/- 0".1 (equinox 2000), which is about 22" west and 47" south of the center of the galaxy NGC 6240. Nothing is visible at this position on archival images taken on June 7.13 (limiting mag 18.0) or in a stack five 80-s images taken between Apr. 24.26 and June 5.13 (limiting mag 19.0). The type-IIn supernova 2000bg also appeared in this galaxy (cf. IAUCs 7392, 7394).

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

(C) Copyright 2010 CBAT 2010 July 23 (CBET 2388) Daniel W. E. Green

Supernova 2010gp
Descubierta el 14/07/2010, Magnitud 17.9.
Encontrada en NGC 6240,
R.A. = 16h52m57s.39, Decl. = +02°23'16".4

Localización 22" Oeste y 47" Sur del centro de NGC 6240.
Tipo Ia.
PGC 59186.

Electronic Telegram No. 2372


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 2010gh in IC 4523.
G. Pignata and M. Cifuentes, Universidad Andres Bello; J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, S. Silva, G. Folatelli, R. Cartier, F. Forster, and S. Marchi, Universidad de Chile; B. Conuel, Wesleyan University; 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, report the discovery of an apparent supernova (mag approximately 16.9) on unfiltered images taken on July 13.03 and 14.09 UT with the 0.41-m 'PROMPT 1' telescope located at Cerro Tololo. The new object is located at R.A. = 15h05m13s.46 +/- 0".1, Decl. = -43°30'59".6 +/- 0".1 (equinox 2000.0), which is about 31".9 east and 25".8 south of the center of the galaxy IC 4523. Nothing is visible at this position on archival images taken on June 28.07 (limiting mag 18.0) and June 1.14 (limiting mag 18.5).

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

(C) Copyright 2010 CBAT 2010 July 14 (CBET 2372) Daniel W. E. Green

Supernova 2010gh
Descubierta el 13/07/2010, Magnitud 16.9.
Encontrada en IC 4523,
R.A. = 15h05m13s.46, Decl. = -43°30'59".6
Localización 31".9 Este y 25".8 Sur del centro de IC 4523.
Tipo IIp.
PGC 53845.

Electronic Telegram No. 2371


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 2010gg in ESO 602-25.
J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, S. Silva, G. Folatelli, R. Cartier, F. Forster, and S. Marchi, Universidad de Chile; G. Pignata and M. Cifuentes, Universidad Andres Bello; B. Conuel, Wesleyan University; 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, report the discovery of an apparent supernova (mag approximately 17.7) on an unfiltered image taken on July 12.31 UT with the 0.41-m 'PROMPT 3' telescope located at Cerro Tololo. The new object, which is also present at mag approximately 17.5 in an image taken on July 13.30, is located at R.A. = 22h31m25s.47 +/- 0".1, Decl. = -19°01'54".8 +/- 0".1 (equinox 2000.0), which is about 0".1 east and 9".5 north of the center of the galaxy ESO 602-25. Nothing is visible at this position on archival images taken on June 22.24 (limiting mag 17.0) and in a stack of twenty-three 40-s images taken between 2009 Apr. 13.39 and 2010 May 7.36 (limiting mag 20.5).

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

(C) Copyright 2010 CBAT 2010 July 14 (CBET 2371) Daniel W. E. Green

Supernova 2010gg
Descubierta el 12/07/2010, Magnitud 17.5.
Encontrada en ESO 602-25,
R.A. = 22h31m25s.47, Decl. = -19°01'54".8

Localización 0".1 Este y 9".5 Norte del centro de ESO 602-25.
Tipo II.
PGC 69057.

Electronic Telegram No. 2367


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 2010gc.
G. Pignata and M. Cifuentes, Universidad Andres Bello; J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, S. Silva, G. Folatelli, R. Cartier, F. Forster, and S. Marchi, Universidad de Chile; B. Conuel, Wesleyan University; 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, report the discovery of an apparent supernova (mag approximately 16.8) on unfiltered images taken on July 12.08 and 12.98 UT with the 0.41-m 'PROMPT 1' telescope located at Cerro Tololo. The new object is located at R.A. = 13h23m06s.30 +/- 0".1, Decl. = -13°00'18".1 +/- 0".1 (equinox 2000.0), which is about 3".4 east and 4".0 south of center of the presumed host galaxy. Nothing is visible at this position on archival images taken on June 12.07 (limiting mag 18.0) and May 1.13 (limiting mag 18.5).

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

(C) Copyright 2010 CBAT 2010 July 13 (CBET 2367) Daniel W. E. Green

Supernova 2010gc
Descubierta el 12/07/2010, Magnitud 16.8.
Encontrada en galaxia anónima,
R.A. = 13h23m06s.30, Decl. = -13°00'18".1

Localización 3".4 Este y 4".0 Sur del centro de galaxia anónima.
Tipo Ia.
cerca de PGC 46737 .

Electronic Telegram No. 2349


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 2010ey in ESO 548-76.
J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, S. Silva, G. Folatelli, R. Cartier, F. Forster, and S. Marchi, Universidad de Chile; G. Pignata and M. Cifuentes, Universidad Andres Bello; B. Conuel, Wesleyan University; 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, report the discovery of an apparent supernova (mag approximately 16.9) on an unfiltered image taken on June 30.41 UT with the 0.41-m 'PROMPT 3' telescope located at Cerro Tololo. The new object, which is also present at mag approximately 16.8 in an image taken on July 2.39, is located at R.A. = 3h41m31s.50 +/- 0".1, Decl. = -19°54'00".4 +/- 0".1 (equinox 2000.0), which is about 4".7 west and 17".9 north of the center of the galaxy ESO 548-76. Nothing is visible at this position on archival images taken on Jan. 9.12 and 12.10 (limiting mag 18.5).

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

(C) Copyright 2010 CBAT 2010 July 04 (CBET 2349) Daniel W. E. Green

Supernova 2010ey
Descubierta el 30/06/2010, Magnitud 16.9.
Encontrada en ESO 548-76,
R.A. = 03h41m31s.50, Decl. = -19°54'00".4

Localización 4".7 Oeste y 17".9 Norte del centro de ESO 548-76.
Tipo Ia.
PGC 13570 .

Electronic Telegram No. 2344


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 2010ev in NGC 3244.
G. Pignata, M. Cifuentes, Universidad Andres Bello; J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, S. Silva, G. Folatelli, R. Cartier, F. Forster, and S. Marchi, Universidad de Chile; B. Conuel, Wesleyan University; 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, report their discovery of an apparent supernova (mag approximately 14.3 +/- 0.2) on an unfiltered image taken on June 27.05 UT with the 0.41-m 'PROMPT 1' telescope located at Cerro Tololo. The new object, which was confirmed at mag approximately 13.7 in an unfiltered image taken with the 'PROMPT 3' telescope on June 29.99, is located at R.A. = 10h25m28s.99 +/- 0".1, Decl. = -39°49'51".2 +/- 0".1 (equinox 2000.0), which is about 1".6 east and 12".4 south of center of the galaxy NGC 3244. Nothing is visible at this position on archival images taken on May 1.01 (limiting mag 18.5) and Apr. 28.02 (limiting mag 18.0).
Prior to the confirming image by CHASE (above), 2010ev was posted on the Central Bureau's unconfirmed-objects webpage. Several hours after that posting, C. Jacques (Belo Horizonte, Brazil) reported the independent discovery of 2010ev in the course of the Brazilian Supernovae Search (by C. Colesanti, E. Pimentel, T. Napoleao, and himself), noting mag 15.0 and position end figures 29s.06, 50".7 (offset 5".4 east, 10".5 south) on their unfiltered CCD image (limiting magnitude 18.0) taken with a 0.30-m Schmidt- Cassegrain f/3 reflector at the CEAMIG-REA Observatory on June 28.89 UT, adding that nothing is visible at this position on a CCD image taken on 2005 Jan. 15.12 (limiting magnitude 18.5) or on a Palomar Sky Survey plate from 1984 Feb. 3 (limiting red mag 19.5).
Also, Greg Bock (Windaroo, Queensland, Australia) reports that Stuart Parker (Oxford, Canterbury, New Zealand) obtained a 25-s unfiltered CCD image (limiting red mag 18.2) with a 35-cm Celestron C14 f/6.3 reflector (+ ST10 CCD camera) on June 27.05 UT, showing 2010ev at red mag 14.8 and position end figures 28s.94, 51".9 (offset 1".9 east, 11".4 south), as measured by Bock.

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

(C) Copyright 2010 CBAT 2010 June 13 (CBET 2344) Daniel W. E. Green

Supernova 2010ev
Descubierta el 27/06/2010, Magnitud 14.3.
Encontrada en NGC 3244,
R.A. = 10h25m28s.99, Decl. = -39°49'51".2
Localización 1".6 Este y 12".4 Sur del centro de NGC 3244.
Tipo Ia.
PGC 30594 .

Electronic Telegram No. 2322


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 2010ec in NGC 655.
J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, S. Silva, G. Folatelli, R. Cartier, F. Forster, and S. Marchi, Universidad de Chile; G. Pignata and M. Cifuentes, Universidad Andres Bello; B. Conuel, Wesleyan University; 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, report the discovery of an apparent supernova (mag approximately 17.1 +/- 0.3) on an unfiltered image taken on June 5.40 UT with the 0.41-m 'PROMPT 3' telescope located at Cerro Tololo. The new object, which is also present at mag approximately 17.0 in an image taken on June 8.44, is located at R.A. = 1h41m55s.93 +/- 0".1, Decl. = -13°05'01".6 +/- 0".1 (equinox 2000.0), which is about 11".8 east and 7".4 south of the center of the galaxy NGC 655. Nothing is visible at this position on archival images taken on 2009 Oct. 13.17 and Nov. 20.21 (limiting mag 18.5).

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

(C) Copyright 2010 CBAT 2010 June 13 (CBET 2322) Daniel W. E. Green

Supernova 2010ec
Descubierta el 05/06/2010, Magnitud 17.0.
Encontrada en NGC 655,
R.A. = 01h41m55s.93, Decl. = -13°05'01".6

Localización 11".8 Este y 7".4 Sur del centro de NGC 655.
Tipo Ia.
PGC 06262 .

Electronic Telegram No. 2314


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 2010dx in NGC 7038.
G. Pignata and M. Cifuentes, Universidad Andres Bello; J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, S. Silva, G. Folatelli, R. Cartier, F. Forster, and S. Marchi, Universidad de Chile; B. Conuel, Wesleyan University; 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, report the discovery of an apparent supernova (mag approximately 17.4 +/- 0.3) on an unfiltered image taken on June 8.17 UT with the 0.41-m 'PROMPT 1' telescope located at Cerro Tololo. The new object is located at R.A. = 21h15m11s.09 +/- 0".1, Decl. = -47°13'34".3 +/- 0".1 (equinox 2000.0), which is about 36".4 east 20".2 south of the center of the galaxy NGC 7038. Nothing is visible at this position on archival images taken on May 10.34 and Apr. 28.30 (limiting mag 18.5). SN 2010dx is also present in images taken on June 9.19 (at mag approximately 17.1) and June 1.28 (at mag approximately 17.0).

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

(C) Copyright 2010 CBAT 2010 June 09 (CBET 2314) Daniel W. E. Green

Supernova 2010dx
Descubierta el 08/06/2010, Magnitud 17.4.
Encontrada en NGC 7039,
R.A. = 21h15m11s.09, Decl. = -47°13'34".3

Localización 36".4 Este y 20".2 Sur del centro de NGC 7039.
Tipo II.
PGC 66414 .

Electronic Telegram No. 2306


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 2010ds in IC 4840.
J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, S. Silva, G. Folatelli, R. Cartier, F. Forster, S. Marchi, and A. Leal, Universidad de Chile; G. Pignata and M. Cifuentes, Universidad Andres Bello; B. Conuel, Wesleyan University; 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, report the discovery of an apparent supernova (mag approximately 16.4 +/- 0.3) on an unfiltered image taken on May 22.34 UT with the 0.41-m 'PROMPT 3' telescope located at Cerro Tololo. The new object, which is also present at mag approximately 17.0 in an image taken on June 4.08, is located at R.A. = 19h15m51s.46 +/- 0".1, Decl. = -56o12'30".9 +/- 0".1 (equinox 2000.0), which is about 1".7 west and 1".9 north of the center of the galaxy IC 4840. Nothing is visible at this position on archival images taken on May 1.24 (limiting mag 18.5) and Apr. 22.29 (limiting mag 18.0).

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

(C) Copyright 2010 CBAT 2010 June 04 (CBET 2306) Daniel W. E. Green

Supernova 2010ds
Descubierta el 22/05/2010, Magnitud 16.4.
Encontrada en IC 4840,
R.A. = 19h15m51s.46, Decl. = -56°12'30".9

Localización 1".7 Oeste y 1".9 Norte del centro de IC 4840.
Tipo indefinido.
PGC 62983 .

Electronic Telegram No. 2269


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 2010cn.
G. Pignata and M. Cifuentes, Universidad Andres Bello; J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, S. Silva, G. Folatelli, R. Cartier, F. Forster, and S. Marchi, Universidad de Chile; B. Conuel, Wesleyan University; 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, report the discovery of an apparent supernova (mag approximately 17.6 +/- 0.3) on an unfiltered image taken on May 4.05 UT with the 0.41-m 'PROMPT 5' telescope located at Cerro Tololo. The new object, which is also present at mag approximately 17.2 in an image taken on May 4.98, is located at R.A. = 11h04m06s.57 +/- 0".1, Decl. = +4°49'58".7 +/- 0".1 (equinox 2000.0). Nothing is visible at this position on archival images taken on Apr. 4.13 (limiting mag 17.5) and (in a stack of five 40-s images) on Mar. 25.01 (limiting mag 18.7). The surface brightness of the presumed host galaxy has no clear galaxy core.

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

(C) Copyright 2010 CBAT 2010 May 06 (CBET 2269) Daniel W. E. Green

Supernova 2010cn
Descubierta el 04/05/2010, Magnitud 17.2.
Encontrada galaxia anónima,
R.A. = 11h04m06s.57, Decl. = +04°49'58".7

Localización en una galaxia anónima.
Tipo IIb.
cerca de PGC 33446 .

Electronic Telegram No. 2266


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 2010cl in MCG -02-25-20.
J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, S. Silva, G. Folatelli, R. Cartier, F. Forster, and S. Marchi, Universidad de Chile; G. Pignata and M. Cifuentes, Universidad Andres Bello; B. Conuel, Wesleyan University; 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, report the discovery of an apparent supernova (mag approximately 17.1 +/- 0.3) on an unfiltered image taken on Apr. 29.01 UT with the 0.41-m 'PROMPT 4' telescope located at Cerro Tololo. The new object, which is also present at mag approximately 17.2 in an image taken on Apr. 29.99, is located at R.A. = 9h50m12s.32 +/- 0".1, Decl. = -12°03'09".2 +/- 0".1 (equinox 2000.0), which is about 24".0 west and 18".4 north of the center of the galaxy MCG -02-25-20. Nothing is visible at this position on archival images taken on Mar. 29.09 (limiting mag 18.0) and Feb. 4.13 (limiting mag 18.5).

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

(C) Copyright 2010 CBAT 2010 April 30 (CBET 2266) Daniel W. E. Green

Supernova 2010cl
Descubierta el 29/04/2010, Magnitud 17.1.
Encontrada en MCG -02-25-20,
R.A. = 09h50m12s.32, Decl. = -12°03'09".2

Localización 24".0 Oeste y 18".4 Norte en MCG -02-25-20.
Tipo IIP.
PGC 28308 .

Electronic Telegram No. 2231


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 2010bo.
G. Pignata and M. Cifuentes, Universidad Andres Bello; J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, S. Silva, G. Folatelli, R. Cartier, F. Forster, S. Marchi, and A. Rojas, Universidad de Chile; B. Conuel, Wesleyan University; 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, report the discovery of an apparent supernova (mag approximately 15.8 +/- 0.2) on an unfiltered image taken on Apr. 10.27 UT with the 0.41-m 'PROMPT 3' telescope located at Cerro Tololo. The new object, which is also present at mag approximately 15.9 +/- 0.2 in an image taken on Apr. 11.11, is located at R.A.= 15h56m22s.57 +/- 0".1, Decl. = -31°32'09".8 +/- 0".1 (equinox 2000.0), which is about 5".9 west and 3".4 north of the center of the apparent host galaxy. Nothing is visible at this position on archival images taken on Mar. 19.38 (limiting mag 18.5) and 2009 Aug. 10.99 (limiting mag 18.0).

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

(C) Copyright 2010 CBAT 2010 April 12 (CBET 2238) Daniel W. E. Green

Supernova 2010bo
Descubierta el 10/04/2010, Magnitud 15.8.
Encontrada en galaxia anónima,
R.A. = 15h56m22s.57, Decl. = -31°32'09".8

Localización 5".9 Oeste y 3".4 Norte en galaxia anónima.
Tipo II.
cerca de PGC 56429 .

Electronic Telegram No. 2231


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 2010bk in NGC 4433.
J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, S. Silva, G. Folatelli, R. Cartier, F. Forster, S. Marchi, and A. Rojas, Universidad de Chile; G. Pignata and M. Cifuentes, Universidad Andres Bello; B. Conuel, Wesleyan University; 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, report the discovery of an apparent supernova (mag approximately 17.6 +/- 0.4) on an unfiltered image taken on Apr. 4.19 UT with the 0.41-m 'PROMPT 5' telescope located at Cerro Tololo. The new object, which is also present at mag approximately 17.8 in images taken on Apr. 5.18 and 7.01, is located at R.A. = 12h27m38s.47 +/- 0".1, Decl. = -8°16'39".3 +/- 0".1 (equinox 2000.0), which is about 2".8 west and 9".9 north of the center of the galaxy NGC 4433. Nothing is visible at this position in archival images taken on Apr. 1.19 (limiting mag 17.5) or on a stack of archival images taken between 2009 Mar. 12.22 and 2010 Mar. 29.20 (limiting mag 20.0).

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

(C) Copyright 2010 CBAT 2010 April 07 (CBET 2231) Daniel W. E. Green

Supernova 2010bk
Descubierta el 04/04/2010, Magnitud 17.8.
Encontrada en NGC 4433,
R.A. = 12h27m38s.47, Decl. = -08°16'39".3

Localización 2".8 Oeste y 9".9 Norte del centro de NGC 4433.
Tipo IIP.
PGC 40894 .

Electronic Telegram No. 2229


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 2010bi in NGC 3509.
G. Pignata and M. Cifuentes, Universidad Andres Bello; J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, S. Silva, G. Folatelli, R. Cartier, F. Forster, S. Marchi, and A. Rojas, Universidad de Chile; B. Conuel, Wesleyan University; 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, report the discovery of an apparent supernova (mag approximately 17.7 +/- 0.4) on an unfiltered image taken on Mar. 24.16 UT with the 0.41-m 'PROMPT 5' telescope located at Cerro Tololo. The new object, which is also present in an image taken on Mar. 25.13 at mag approximately 17.7, is located at R.A. = 11h04m25s.49 +/- 0".1, Decl. = +4°50'17".6 +/- 0".1 (equinox 2000), which is about 28".4 east and 34".6 north of the center of the galaxy NGC 3509. Nothing is visible at this position on archival images taken on Feb. 22.25 (limiting mag 18.0) and on a stack of 21 archival images taken between 2008 Dec. 6.32 and 2010 Feb. 22.25 (limiting mag 20.5).

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

(C) Copyright 2010 CBAT 2010 March 25 (CBET 2229) Daniel W. E. Green

Supernova 2010bi
Descubierta el 24/03/2010, Magnitud 17.7.
Encontrada en NGC 3509,
R.A. = 11h04m25s.49, Decl. = +4°50'17".6

Localización 28".4 Este y 34".6 Norte del centro de NGC 3509.
Tipo IIP.
PGC 33446 .

Electronic Telegram No. 2215


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 2010as in NGC 6000.
J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, S. Silva, G. Folatelli, R. Cartier, F. Forster, S. Marchi, and A. Rojas, Universidad de Chile; G. Pignata and M. Cifuentes, Universidad Andres Bello; B. Conuel, Wesleyan University; 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, report the discovery of an apparent supernova (mag approximately 15.5 +/- 0.2) on an unfiltered image taken on Mar. 19.22 UT with the 0.41-m 'PROMPT 1' telescope located at Cerro Tololo. The new object, which is also present in an image taken on Mar. 20.16 at mag approximately 15.2, is located at R.A. = 15h49m49s.23 +/- 0".1, Decl. = -29°23'09".7 +/- 0".1 (equinox 2000), which is about 3".1 west and 2".0 north of the center of the galaxy NGC 6000. Nothing is visible at this position in archival images taken on Feb. 22.25 and Mar. 12.33 (limiting mag 17.5). NGC 6000 was also the host galaxy of the type-II supernova 2007ch (cf. CBETs 961, 963).

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

(C) Copyright 2010 CBAT 2010 March 20 (CBET 2215) Daniel W. E. Green

Supernova 2010as
Descubierta el 19/03/2010, Magnitud 15.5.
Encontrada en NGC 6000,
R.A. = 15h49m49s.23, Decl. = -29°23'09".7
Localización 3".1 Oeste y 2".0 Norte del centro de NGC 6000.
Tipo Ib/c.
PGC 56145 .

Electronic Telegram No. 2184


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 2010ae in ESO 162-17.
G. Pignata and M. Cifuentes, Universidad Andres Bello; J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, P. Lopez, S. Silva, G. Folatelli, R. Cartier, F. Forster, S. Marchi, and A. Rojas, Universidad de Chile; B. Conuel, Wesleyan University; 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, report the discovery of an apparent supernova (mag approximately 15.9 +/- 0.3) on an unfiltered image taken on Feb. 22.06 UT with the 0.41-m 'PROMPT 3' telescope located at Cerro Tololo.
The new object, which is also present at mag approximately 15.6 +/- 0.3 in an image taken on Feb. 23.01, is located at R.A. = 7h15m54s.65 +/- 0".1, Decl. = -57o20'36".9 +/- 0".1 (equinox 2000.0), which is about 0".6 east and 0".2 south of the center of the galaxy ESO 162-17. Nothing is visible at this position on archival images taken on Feb. 10.11 and 17.11 (limiting mag 18.0). M. Stritzinger, Las Campanas Observatory (LCO); G. Folatelli, Universidad de Chile; G. Pignata, Universidad Andres Bello; and M. M. Phillips, LCO, on behalf of the Carnegie Supernova Project and the Millennium Center for Supernova Science, report that they obtained an optical spectrum (range 486-750 nm) of supernova 2010ae on Feb. 23.1 UT with the Gemini South telescope (+ GMOS).
This spectrum suggests that the object is a reddened (the equivalent width of Na I D is 0.12 nm), peculiar type-Ia event most similar to supernova 2006gz (Hicken et al. 2007, Ap.J. 669, 17). The spectrum consists of prevalent Si II (rest 635.5 nm) and S II (rest 544.9 and 562.3 nm) absorption features. In addition, a strong absorption feature is present at 651 nm and a weaker one at 718.1 nm, which is tentatively suggested to be formed by C II (rest 658.0 and 723.4 nm). Adopting a recession velocity of 1098 km/s (H I Parkes All-Sky Survey Final Catalog; Wong et al. 2006, MNRAS 371, 1855) for the host galaxy (ESO 162-17 is classified as a possible type-Sb-peculiar), an approximate expansion velocity of 4600 km/s was derived from the absorption minimum of the Si II line (rest 635.5 nm). A similar measurement of the C II feature (rest 658.0 nm) yields a blue-shift of 4300 km/s. Alternatively, if the 651-nm feature was formed from H-alpha, an expansion velocity of approximately 3600 km/s is obtained.

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

(C) Copyright 2010 CBAT 2010 February 23 (CBET 2184) Daniel W. E. Green

Supernova 2010ae
Descubierta el 22/02/2010, Magnitud 15.9.
Encontrada en ESO 162-17,
R.A. = 07h15m54s.65, Decl. = -57°20'36".9

Localización 0".6 Este y 0".2 Norte del centro de ESO 162-17.
Tipo Ia-pec.
PGC 20531.

Electronic Telegram No. 2174


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 2010ac in IC 4352.
J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, P. Lopez, S. Silva, G. Folatelli, R. Cartier, F. Forster, S. Marchi, and A. Rojas, Universidad de Chile; G. Pignata and M. Cifuentes, Universidad Andres Bello; B. Conuel, Wesleyan University; 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, report the discovery of an apparent supernova (mag approximately 16.6 +/- 0.4) on an unfiltered image taken on Feb. 13.31 UT with the 0.41-m 'PROMPT 5' telescope located at Cerro Tololo. The new object, which is also present at mag approximately 16.8 in an image taken on Feb. 14.26, is located at R.A. = 13h58m24s.35 +/- 0".1, Decl. = -34°30'55".4 +/- 0".1 (equinox 2000.0), which is about 9".5 west and 6".6 north of center of the galaxy IC 4352. Nothing is visible at this position on archival images taken on 2009 May 12.18 (limiting mag 18.0) and Aug. 4.04 (limiting mag 18.5).

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

(C) Copyright 2010 CBAT 2010 February 15 (CBET 2174) Daniel W. E. Green

Supernova 2010ac
Descubierta el 13/02/2010, Magnitud 16.6.
Encontrada en IC 4352,
R.A. = 13h58m24s.35, Decl. = -34°30'55".4

Localización 9".5 Oeste y 6".6 Norte del centro de IC 4352
Tipo Ic.
PGC 49726.

Electronic Telegram No. 2159


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 2010T in NGC 3120.
G. Pignata, M. Cifuentes, Universidad Andres Bello; J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, P. Lopez, S. Silva, G. Folatelli, R. Cartier, F. Forster, S. Marchi, and A. Rojas, Universidad de Chile; B. Conuel, Wesleyan University; 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, report the discovery of an apparent supernova (mag approximately 18.2 +/- 0.4) on an unfiltered image taken on Jan. 25.30 UT with the 0.41-m 'PROMPT 4' telescope located at Cerro Tololo.
The new object, which is also present at mag approximately 18.4 in an image taken on Jan. 29.26, is located at R.A. = 13h14m47s.88 +/- 0".1, Decl. = -15°58'24".8 +/- 0".1 (equinox 2000.0), which is about 1".9 east and 2".3 south of center of the apparent host galaxy. Nothing is visible at this position on archival images taken on 2010 Jan. 2.31 (limiting mag 18.5) or in a stack of twenty 40-s images taken between 2008 Dec. 26.33 and 2009 Jun. 25.05 (limiting mag 20.5).

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

(C) Copyright 2010 CBAT 2010 February 01 (CBET 2159) Daniel W. E. Green

Supernova 2010T
Descubierta el 25/01/2010, Magnitud 18.2.
Encontrada en galaxia anónima,
R.A. = 13h14m47s.88, Decl. = -15°58'24".8

Localización 1".9 Este y 3".5 Sur del centro de galaxia anónima.
Tipo indefinido.
cerca de PGC 46081.

Electronic Telegram No. 2125


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 2010F in NGC 3120.
J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, P. Lopez, S. Silva, G. Folatelli, R. Cartier, F. Forster, S. Marchi, and A. Rojas, Universidad de Chile; G. Pignata, Universidad Andres Bello; B. Conuel, Wesleyan University; 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, report the discovery of an apparent supernova (mag approximately 14.8 +/- 0.1 ) on an unfiltered image taken on Jan. 13.26 UT with the 0.41-m 'PROMPT 3' telescope located at Cerro Tololo. The new object, which was confirmed at mag approximately 14.7 on Jan. 14.10, is located at R.A. = 10h05m21s.05 +/- 0".1, Decl. = -34°13'21".0 +/- 0".1 (equinox 2000.0), which is about 24".8 west and 9".1 south of the center of the galaxy NGC 3120. Nothing is visible at this position on archival images taken on Dec. 24.22 (limiting mag 18.0) and Nov. 14.31 (limiting mag 18.5). The type-II s upernova 1999ca also appeared in this galaxy (cf. IAUCs 7158, 7160, 7161).

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

(C) Copyright 2010 CBAT 2010 January 14 (CBET 2125) Daniel W. E. Green

Supernova 2010F
Descubierta el 13/01/2010, Magnitud 14.8.
Encontrada en NGC 3120,
R.A. = 10h05m21s.05, Decl. = -34°13'21".0

Localización 24".86 Oeste y 9".1 Sur del centro de NGC 3120.
Tipo II.
PGC 29278.