[IAUC] CBET 3784: 20140117 : SUPERNOVA 2014E IN UGC 7034 = PSN J12033124+0202357

Jue Ene 16 20:36:37 ART 2014

                                                  Electronic Telegram No. 3784
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 2014E IN UGC 7034 = PSN J12033124+0202357
     S. Howerton, Arkansas City, KS, U.S.A.; A. J. Drake, S. G. Djorgovski,
A. Mahabal, M. J. Graham, and R. Williams, California Institute of Technology;
J. L. Prieto, Princeton University; M. Catelan, Pontificia Universidad
Catolica de Chile; and E. Christensen and S. M. Larson, Lunar and Planetary
Laboratory, University of Arizona, report the Catalina Real-time Transient
Survey discovery of an apparent supernova in public images from the Catalina
Sky Survey (CSS), with the discovery observation tabulated below:

 SN       2014 UT       R.A. (2000.0) Decl.      Mag.      Offset
 2014E    Jan. 7.46   12 03 31.24  + 2 02 35.7   16.4    95".7 W, 13".2 S

The variable was designated PSN J12033124+0202357 when it was posted at the
Central Bureau's TOCP webpage and is here designated SN 2014E based on the
spectroscopic confirmation reported below.  Additional CCD magnitudes for
2014E:  2013 Nov. 12.52, [19.0 (CSS); 2014 Jan. 8.528, 16.7 (L. Elenin,
Lyubertsy, Russia, and I. Molotov, Moscow; remotely with a 0.4-m telescope at
the ISON-NM Observatory near Mayhill, NM, USA; position end figures 31s.30 +/-
0".09, 33".8 +/- 0".08; limiting red mag about 18.9; image posted at website
URL http://spaceobs.org/images/TOCP/PSNJ12033124+0202357-20140108.png); 9.367,
16.5 (Joseph Brimacombe, Cairns, Australia; remotely using a 51-cm RCOS
telescope + STXL-6303 camera located at the New Mexico Skies observatory near
Mayhill; position end figures 31s.33, 34".0; image posted at website URL
http://www.flickr.com/photos/43846774@N02/11865990775/).

     L. Tartaglia, A. Pastorello, S. Benetti, E. Cappellaro, L. Tomasella, P.
Ochner, N. Elias-Rosa, and M. Turatto, Osservatorio Astronomico di Padova,
Istituto Nazionale di Astrofisica, report that an optical spectrogram (range
340-820 nm; resolution 1.3 nm) of PSN J12033124+0202357 = SN 2014E, obtained
on Jan. 9.13 UT with the Asiago 1.82-m Copernico Telescope (+ AFOSC), shows
that it is a type-Ia supernova.  Adopting for the host galaxy (UGC 7034) a
redshift z = 0.01891 (Smith et al. 2004, A.J. 128, 1558; via NED), a good
match is obtained with the type-Ia supernova 2004eo (Pastorello et al. 2007,
MNRAS 377, 1531) a few days before B-band maximum light.  The expansion
velocity of the ejected material, as inferred from the position of the
minimum of the Si II line at 635.5 nm, is 12200 km/s.  The Asiago
classification spectra are posted at website URL http://sngroup.oapd.inaf.it;
classification was made via GELATO (Harutyunyan et al. 2008, A.Ap. 488, 383)
and SNID (Blondin and Tonry 2007, Ap.J. 666, 1024).

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

                         (C) Copyright 2014 CBAT
2014 January 17                  (CBET 3784)              Daniel W. E. Green