Electronic Telegram No. 2235
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


SUPERNOVAE 2010ax AND 2010bi
     S. B. Cenko, M. T. Kandrashoff, and A. V. Filippenko, University of
California, Berkeley, report that inspection of a CCD spectrum (range
350-1000 nm), obtained Apr. 8 UT with the 3-m Shane reflector (+ Kast) at
Lick Observatory, reveals that SN 2010bi (CBET 2229) is a type-II supernova;
cross-correlation with SNID (Blondin and Tonry 2007, Ap.J. 666, 1024)
indicates that 2010bi is similar to the type-IIP supernova 2004et at
approximately 10 days after maximum light.  SN 2010ax (CBET 2219) is a
type-Ia supernova, roughly one month past 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      superseded by text appearing later in the printed IAU Circulars.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 April 9                     (CBET 2235)              Daniel W. E. Green