[IAUC] CBET 2485: 20101008 : SUPERNOVAE 2010gw, 2010hx, 2010ij
quai en eps.harvard.edu
quai en eps.harvard.edu
Mie Sep 14 16:19:41 ART 2011
Electronic Telegram No. 2485
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
SUPERNOVAE 2010gw, 2010hx, 2010ij
N. Morrell, Las Campanas Observatory, Carnegie Supernova Project; and I.
Botti, Universidad de Chile, report that they obtained optical spectroscopy
(range 364-920 nm) of 2010gw (cf. CBET 2410), 2010hx (cf. CBET 2460), and
2010ij (cf. CBET 2478) on Oct. 6 UT with the Las Campans 2.5-m du Pont
telescope (+ WFCCD). Inspection of the data, with the help of the Supernova
Identification tool (SNID, Blondin and Tonry 2006, Ap.J. 666, 1024) shows that
2010gw is a type II-p supernova between 1 and 2 months after the explosion
date; 2010hx is probably a normal type-Ia supernova at 4-6 weeks past maximum
brightness (although, according to SNID, the spectrum is best matched to the
1991T-like supernova 1999aw at 36 days after maximum light); while 2010ij is a
normal type-Ia supernova at roughly two weeks after maximum brightness, very
similar to SN 1981B at 16 days 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superseded by text appearing later in the printed IAU Circulars.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 October 8 (CBET 2485) Daniel W. E. Green
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