Electronic Telegram No. 2298
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 2010dl IN IC 1391
     D. K. Sahu, G. C. Anupama, and S. Arora, Indian Institute of
Astrophysics, Bangalore, report that a low-resolution spectrum (range 350-930
nm) of 2010dl (cf. CBET 2296), obtained on May 30.87 UT with the Indian
Astronomical Observatory's 2-m Himalayan Chandra Telescope (+ HFOSC), shows
it to be a normal type-Ia supernova, a few days after maximum light.  Using
the SNID code of Blondin and Tonry (2007, Ap.J. 666, 1024), the spectrum of
2010dl is found to be similar to that of SN 1998aq at about six days after
maximum light.  After correcting for the recession velocity of the host
galaxy, IC 1391 (9004 km/s, via NED; Jones et al. 2004, MNRAS 355, 747;
Jones et al. 2009, MNRAS 399, 683), the velocity of the Si II 635.5-nm
absorption is measured to be 10500 km/s.


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                         (C) Copyright 2010 CBAT
2010 May 31                      (CBET 2298)              Daniel W. E. Green