[IAUC] CBET 2501: 20101017 : SUPERNOVA 2010ir IN ESO 491-12

[quai en eps.harvard.edu]

                                                  Electronic Telegram No. 2501
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
CBAT Director:  Daniel W. E. Green; Hoffman Lab 209; Harvard University;
 20 Oxford St.; Cambridge, MA  02138; U.S.A.
e-mail:  cbatiau en eps.harvard.edu (alternate cbat en iau.org)
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network


SUPERNOVA 2010ir IN ESO 491-12
     J. L. Prieto, Carnegie Observatories, reports that an optical spectrum
(range 370-930 nm; resolution 0.7nm) of 2010ir (cf. CBET 2494) was obtained
with the APO 3.5-m telescope (+ DIS) on Oct. 14.4 UT.  The spectrum shows
broad He I and Balmer lines in absorption.  After cross-correlation with a
library of supernova spectra using SNID (Blondin and Tonry 2007, Ap.J. 666,
1024), 2010ir is found to be most similar to the type-IIb supernova 2000H at
13 days after maximum.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2010 CBAT
2010 October 17                  (CBET 2501)              Daniel W. E. Green