SUPERNOVA
2011fj IN UGC 11527 = PSN J20135516-0109222
J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier,
F. Forster, S. Silva, F. Carrasco, P. Sanchez, C.
Hervias, D. Iturra, and R. Ramirez, Universidad de
Chile; G. Pignata and M. Cifuentes, Universidad Andres
Bello; C. Farias, 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 an unfiltered image taken on
Aug. 28.09 UT with the 0.41-m 'PROMPT 5' telescope
located at Cerro Tololo. The new object, which is
also present at mag approximately 16.1 in an image
taken on Aug. 29.04, is located at R.A. = 20h13m55s.16
+/- 0".2, Decl. = -1°09'22".2 +/- 0".2 (equinox
2000.0), which is about 11".3 east and 4".9 north
of center of the galaxy UGC 11527. Nothing is visible
at this position on archival images taken on Aug.
24.99 (limiting mag 18.0) and Aug. 12.01 (limiting
mag 18.5). The variable was designated PSN J20135516-0109222
when it was posted at the Central Bureau's TOCP webpage
and is here designated SN 2011fj based on the spectroscopic
report below.
J. L. Prieto, Carnegie Observatories, reports than
an optical spectrum (range 370-930 nm; resolution
0.7 nm) of PSN J20135516-0109222 = SN 2011fj was obtained
on Aug. 30.1 UT with the du Pont 2.5-m telescope (+
WFCCD) at Las Campanas Observatory. The spectrum shows
an almost-featureless blue continuum and a faint,
broad H-alpha emission feature (FWHM approximately
14000 km/s), characteristic of young type-II supernovae.
NOTE: These 'Central Bureau Electronic
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