[IAUC] CBET 3315: 20121127 : SUPERNOVA 2012gl IN NGC 3153 = PSN J10125032+1240567

quai en eps.harvard.edu quai en eps.harvard.edu
Lun Nov 26 21:33:44 ART 2012


                                                  Electronic Telegram No. 3315
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 2012gl IN NGC 3153 = PSN J10125032+1240567
     T.-W. Chen, R. Kotak, and M. Fraser, Queen's University, Belfast, report
that a spectrogram (range 330-975 nm; resolution about 1000) of SN 2012gl (cf.
CBET 3302) was obtained on Nov. 22.21 UT with the 4.2-m William Herschel
Telescope (+ ISIS).  Cross-correlation with a library of supernova spectra via
the "Supernova Identification" code (SNID; Blondin and Tonry 2007, Ap.J. 666,
1024) shows that SN 2012gl is an old type-Ia supernova, between two and three
months after maximum, in NGC 3153 (z = 0.009).  The spectrum of 2012gl best
matches those of several normal type-Ia supernovae such as SN 2007co and SN
1991M.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2012 CBAT
2012 November 27                 (CBET 3315)              Daniel W. E. Green



Más información sobre la lista de distribución Iauc