Electronic Telegram No. 3944
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 2014cf
     T. Morokuma, Institute of Astronomy, University of Tokyo; E. Matsumoto
AND N. Tominaga, Konan University; M. Tanaka, National Astronomical
Observatory of Japan; K. Mameta, Hyogo, Japan; S. Fukuda, Hiroshima, Japan,
and K. Tomita, Aichi, Japan, 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 20.2) taken on Aug. 7.69 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 in Nagano, Japan.  The new object is located
at R.A. = 23h01m52s.97, Decl. = +14d24'50".5 (equinox 2000.0), which is 0".6
north of the presumed host galaxy (SDSS J230152.94+142449.9; z = 0.027, from
the Sloan Digital Sky Survey database).  Nothing is seen at this position in
an image taken on 2013 Nov. 5.61 or in the previous Sloan Digital Sky Survey
image.

     N. Morrell and M. Phillips, Las Campanas Observatory; and E. Y. Hsiao,
Aarhus University, on behalf of the Carnegie Supernova Project, write that
they obtained an optical spectrogram (range 370-950 nm) of 2014cf on Aug.
13.2 UT with the 6.5-m Magellan I (Baade) telescope (+ IMACS) at Las Campanas.
Inspection of the data shows that 2014cf is a type-II supernova several days
after maximum brightness.  Cross-correlation with a library of supernova
spectra via the Supernova Identification tool (Blondin and Tonry 2007, Ap.J.
666, 1024) provides good matches with a number of type-II-p events between
six and fifteen days after maximum light.  If a redshift of z = 0.027 is
assumed for the host galaxy, SDSS J230152.93+142449.9, the minimum of the
H-beta absorption appears blueshifted by roghly 7200 km/s.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2014 CBAT
2014 August 28                   (CBET 3944)              Daniel W. E. Green