[IAUC] CBET 1563: 20081107 : SUPERNOVAE 2008gs, 2008gt, 2008gu, AND 2008gx

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                                                  Electronic Telegram No. 1563
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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SUPERNOVAE 2008gs, 2008gt, 2008gu, AND 2008gx
     J. M. Silverman, B. E. Cobb, R. Chornock, and A. V. Filippenko,
University of California, Berkeley, report that inspection of CCD
spectra (range 340-1000 nm), obtained on Nov. 7 UT with the 3-m Shane
reflector (+ Kast) at Lick Observatory, shows that 2008gs (CBET 1559) 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) indicates that 2008gs is 1-2 months past maximum light.
SN 2008gt (CBET 1559) is a normal type-Ia supernova, about 1 week past
maximum light, according to SNID.  SN 2008gu (CBET 1559) is a type-II
supernova, 1-2 months after explosion.  SN 2008gx (CBET 1561) is a type-II
(possibly IIb) supernova within a week or two after explosion.


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                         (C) Copyright 2008 CBAT
2008 November 7                  (CBET 1563)              Daniel W. E. Green