[IAUC] CBET 1287: 20080306 : SUPERNOVA 2008at IN UGC 5645

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                                                  Electronic Telegram No. 1287
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 2008at IN UGC 5645
      S. Blondin, Harvard-Smithsonian Center for Astrophysics (CfA), on
behalf of the CfA Supernova Group, reports that a spectrum (range 350-740
nm) of 2008at (cf. CBET 1277), obtained on Mar. 5.30 UT by A. Vaz with the
F. L. Whipple Observatory 1.5-m telescope (+ FAST), shows it to be a type-Ia
supernova a few days 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 2008at is most
similar to the type-Ia supernova 2001ep at five days past maximum light.
Adopting a recession velocity of 10493 km/s for the host galaxy of 2008at
(Strauss et al. 1992, Ap.J. Suppl. 83, 29), the maximum absorption in the
Si II line (rest 635.5 nm) is blueshifted by roughly 11000 km/s.


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                         (C) Copyright 2008 CBAT
2008 March 6                     (CBET 1287)              Daniel W. E. Green