[IAUC] CBET 2354: 20100708 : SUPERNOVA 2010fw IN UGC 10995

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                                                  Electronic Telegram No. 2354
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
CBAT Director:  Daniel W. E. Green; Room 209; Dept. of Earth and Planetary
 Sciences; Harvard University; 20 Oxford St.; Cambridge, MA  02138; U.S.A.
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SUPERNOVA 2010fw IN UGC 10995
     J. M. Silverman, I. K. W. Kleiser, C. V. Griffith, and A. V. Filippenko,
University of California, Berkeley, report that inspection of a CCD spectrum
(range 340-1000 nm), obtained on July 7 UT with the 3-m Shane reflector (+
Kast) at Lick Observatory, shows that 2010fw (CBET 2351) is a type-II
supernova.  After removal of the host-galaxy recession velocity of 8100 km/s,
determined by narrow emission lines, it is found that the absorption minimum
of the H-alpha line, which is greatly dominated by the emission component, is
blueshifted by about 10000 km/s.  Cross-correlation with a library of
supernova spectra using the "SuperNova IDentification" code (SNID; Blondin
and Tonry 2007, Ap.J. 666, 1024) indicates that 2010fw is most similar to the
type-II supernova 2004et at maximum light.


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                         (C) Copyright 2010 CBAT
2010 July 8                      (CBET 2354)              Daniel W. E. Green