[IAUC] CBET 2480: 20101006 : SUPERNOVA 2010ih IN NGC 2325

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                                                  Electronic Telegram No. 2480
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.
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SUPERNOVA 2010ih IN NGC 2325
     [EDITOR'S NOTE:  The text below replaces that on CBET 2475.]
     N. Morrell, Las Campanas Observatory, Carnegie Supernova Project; and I.
Botti and P. Lopez, Universidad de Chile, report that they obtained a
spectrogram (range 364-920 nm) of 2010ih (cf. CBET 2471) on Sept. 30.38 UT
with the Las Campanas 2.5-m du Pont telescope (+ WFCCD), which shows that
2010ih is a type-Ia supernova several days past maximum brightness.  Cross-
correlation with a library of supernova spectra using the Supernova
Identification tool (SNID; Blondin and Tonry, 2007, Ap.J. 666, 1024) suggests
for 2010ih an age of 2-3 weeks after maximum light and a redshift of 0.006,
best matched to the spectrum of SN 1990N at 18 days past maximum.  Morrell
adds that NGC2325 has a redshift of 0.007, so that the probability is
high that 2010ih is a part of that galaxy.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2010 CBAT
2010 October 6                   (CBET 2480)              Daniel W. E. Green