Electronic Telegram No. 3815
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@eps.harvard.edu (alternate cbat@iau.org)
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network


SUPERNOVA 2014T
     Masaomi Tanaka, National Astronomical Observatory of Japan; Satoru
Fukuda, Hyogo, Japan; Tomoki Morokuma, Institute of Astronomy, University of
Tokyo; and Nozomu Tominaga, Konan University, on behalf of the Kiso Supernova
Survey collaboration, report the discovery of an apparent supernova (mag 18.7)
on a g-band CCD image (limiting mag 20.4) taken on Feb. 22.65 UT with the Kiso
Wide Field Camera (field-of-view 2.1 deg x 2.1 deg) on the 1.05-m Kiso Schmidt
telescope at the Kiso Observatory.  The new object is located at R.A. =
14h36m04s.98, Decl. = +2d20'34".2 (equinox 2000.0), which is 1".5 east and
1".6 north of the presumed host galaxy (SDSS J143604.90+022032.6).  Nothing is
seen at this position in an image taken on 2013 May 9.74 (limiting mag 20.2).

     E. S. Walker, Yale University; P. A. Mazzali, Liverpool John Moores
University, Max-Planck-Institut fuer Astrophysik, Garching, and Istituto
Nazionale di Astrofisica (INAF), Padova; and E. Pian, Scuola Normale
Superiore, Pisa, and Istituto di Astrofisica Spaziale e Fisica Cosmica, INAF,
Bologna, report that they obtained a CCD spectrogram (range 350-800 nm) of
2014T using the DOLORES spectrograph on the Telescopio Nazionale di Galileo
at La Palma on Feb. 25.18 UT.  The spectrum is that of a type-IIn supernova.
The spectrum shows a blue continuum with strong emission lines of H_alpha,
H_beta, H_gamma, and H_delta and also He I at a redshift of 0.09.  Using the
Gelato code (Harutyunyan et al. 2008, A.Ap. 488, 383), all the statistically
good matches to the spectrum of 2014T are those of type-IIn supernovae
approximately 15 days after explosion.  Upon visual inspection, the best
match is to SN 2005gj at 12 days past explosion.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2014 CBAT
2014 March 2                     (CBET 3815)              Daniel W. E. Green