Electronic Telegram No. 3388
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 2013J
     Masaomi Tanaka, National Astronomical Observatory of Japan; Kensho Mori,
Konan University; Tomoki Morokuma, Institute of Astronomy, University of
Tokyo; Nozomu Tominaga, Konan University; Carlos Contreras, and Jacquline
Seron, Mark Phillips, Nidia Morrell, Consuelo Gonzalez, and Eric Hsiao, Las
Campanas Observatory, on behalf of the Kiso Supernova Survey (KISS)
collaboration, report the discovery of an apparent supernova (mag 18.8)
on a g-band CCD image (limiting mag 20.5) taken on Jan. 19.77 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.
= 11h12m50s.30 +28d04'19".7 (equinox 2000.0), which is 1".5 west and 5".5
north of the host galaxy (KUG 1110+283 or SDSS J111250.41+280414.2; at z =
0.034, from the NASA/IPAC Extragalactic Database).  This object was also
marginally detected with a g-band magnitude of 20 in their previous image
taken on Jan. 15.84, but nothing is seen at this position in an image taken
on Jan. 12.79 or in a Sloan Digital Sky Survey image.

     F. Taddia, Oskar Klein Centre, Stockholm University; M. Stritzinger,
Department of Physics and Astronomy, Aarhus University; and C. Contreras and
J. Seron, Las Campanas Observatory, on behalf of the KISS collaboration,
report that they obtained a visual-wavelength spectrogram on Jan. 21.2 UT of
SN 2013J with the Nordic Optical Telescope (+ Alfosc).  Close inspection of
the spectrum reveals that SN 2013J is a type-Ic supernova around maximum
light.  Cross-correlation with a library of template spectra using SNID
(Blondin and Tonry 2007, Ap.J. 666, 1024) reveals that 2013J is quite
similar to the near-maximum spectra of SNe 1983V and 1994I.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2013 CBAT
2013 January 22                  (CBET 3388)              Daniel W. E. Green