[IAUC] CBET 3173: 20120711 : SUPERNOVA 2012dh IN ESO 443-80 = PSN J13110904-2800331

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Mar Jul 10 17:23:45 ART 2012


                                                  Electronic Telegram No. 3173
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 2012dh IN ESO 443-80 = PSN J13110904-2800331
     M. Fraser, R. Kotak, D. Wright, K. Smith, S. J. Smartt, L. Magill, and
M. McCrum, Queen's University, Belfast, report that an optical spectrogram
of PSN J13110904-2800331 = SN 2012dh (cf. CBET 3163) was obtained by J.
Jensen-Hansen with the Nordic Optical Telescope (+ ALFOSC + Grism#4; coverage
320-910 nm; resolution about 1.4 nm) on July 7, showing it to be a young
type-IIP supernova discovered soon after explosion.  The spectrum consists of
a blue continuum, with Balmer series P-Cyg features, and a strong P-Cyg He I
line at 587.6 nm.  The SuperNova IDentification code (SNID; Blondin and Tonry
2007, Ap.J. 666, 1024) finds a good match to several type-II supernovae at
the redshift of ESO 443-80 (z = 0.007), with a best match to SN 2005ay at
+1 day.


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                         (C) Copyright 2012 CBAT
2012 July 11                     (CBET 3173)              Daniel W. E. Green



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