[IAUC] CBET 1883: 20090725 : SUPERNOVA 2009gk IN UGC 11803

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                                                  Electronic Telegram No. 1883
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 2009gk IN UGC 11803
     T. N. Steele, I. K. W. Kleiser, A. J. L. Morton, R. Chornock, and A. V.
Filippenko, University of California, Berkeley, report that inspection of a
CCD spectrum (range 350-1080 nm), obtained on July 23 UT with the 3-m Shane
reflector (+ Kast) at Lick Observatory, shows that SN 2009gk (CBET 1859) is
a type-IIb supernova.  Cross-correlation with a library of supernova spectra
using the "SuperNova IDentification" code (SNID; Blondin and Tonry 2007, Ap.J.
666, 1024) finds a best-fit match with the spectrum of SN 1993J at 6 days
after maximum light.  The expansion velocity measured from the minimum of the
H-alpha absorption is 11,300 km/s.


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                         (C) Copyright 2009 CBAT
2009 July 25                     (CBET 1883)              Daniel W. E. Green