[IAUC] CBET 1095: 20071007 : SUPERNOVA 2007kg

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                                                  Electronic Telegram No. 1095
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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SUPERNOVA 2007kg
     S. Blondin, Harvard-Smithsonian Center for Astrophysics (CfA), on
behalf of the CfA Supernova Group; and T. Matheson, National Optical
Astronomy Observatory, report that a spectrogram (range 350-740 nm) of
2007kg (cf. CBET 1086), obtained by P. Berlind on Oct. 6.39 UT with the
F. L. Whipple Observatory 1.5-m telescope (+ FAST), shows it to be a
type-Ia supernova around 3 months past maximum light.  Cross-correlation
with a library of supernova spectra using the Supernova Identification
code "SNID" (Blondin and Tonry 2007, Ap.J. 666, 1024) indicates that
2007kg is most similar to the type-Ia supernova 2001V at 78 days past
maximum, at an approximate redshift cz = 2000 km/s.


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                         (C) Copyright 2007 CBAT
2007 October 7                   (CBET 1095)              Daniel W. E. Green