Electronic Telegram No. 2167
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@cfa.harvard.edu; dwe_green@eps.harvard.edu
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVAE 2010V AND 2010X
     D. Milisavljevic and R. Fesen, Dartmouth College, report that
low-dispersion optical spectra (range 430-790 nm) of 2010V (cf. CBET 2162)
and 2010X (CBET 2166) were obtained with the 2.4-m Hiltner telescope (+
CCDS) at MDM Observatory on Feb. 8.4 UT.  Comparison with a library of
supernova spectra using the "Supernova Identification" tool (SNID; Blondin
and Tonry 2007, ApJ., 666, 1024) shows that the spectrum of 2010V closely
matches that of the type-Ia normal supernova 2002bo at approximately 24
days post-maximum light; the spectrum of 2010X resembles the type-Ic
supernovae 1994I and 2004aw at a few days before maximum light.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2010 CBAT
2010 February 8                  (CBET 2167)              Daniel W. E. Green