Electronic Telegram No. 2196
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.
e-mail:  cbat@iau.org; cbatiau@eps.harvard.edu
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2010ag IN UGC 10679
     D. Milisavljevic and R. Fesen, Dartmouth College, report that a
low-dispersion optical spectrum (range 430-790 nm) of 2010ag (cf. CBET 2195)
was obtained with the 2.4-m Hiltner telescope (+ CCDS) at MDM Observatory on
Mar. 10.5 UT.  Comparison with two suites of template supernova spectra
identifies 2010ag as a type-Ia event.  The "Supernova Identification" tool
(SNID; Blondin and Tonry 2007, ApJ., 666, 1024) produces a good match to the
1991T-like supernova 1997br at four days before maximum light.  The GELATO
online database (Harutyunyan et al. 2008, A.Ap. 488, 383) also finds
reasonable matches with other peculiar-type-Ia supernovae a few days before
maximum light.


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                         (C) Copyright 2010 CBAT
2010 March 11                    (CBET 2196)              Daniel W. E. Green