Electronic Telegram No. 3859
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 2014ar IN ESO 266-G15 = PSN J11405890-4429057
     Greg Bock, Runaway Bay, Queensland, Australia, reports the discovery of
an apparent supernova (red mag 17.6) on a 30-s unfiltered CCD image (limiting
mag 18.5) taken on Apr. 18.52 UT with a 35-cm Meade LX200R f/7 reflector (+
ST10 camera) in the course of the Backyard Observatory Supernova Search.  The
new object is located at R.A. = 11h40m58s.90, Decl. = -44d29'05".7 (equinox
2000.0; reference stars from USNO-B and UCAC4 catalogues), which is 34".8 east
 and 12".7 south of the nucleus of the galaxy ESO 266-G15.  Nothing is visible
at this position on Digitized Sky Survey red and infrared images (limiting red
magnitude > 19).  The object is also just visible in a pre-discovery image
taken two days earlier by Peter Marples, on Apr. 17 in a 30-s unfiltered
exposure (limiting magnitude 18.0) at Loganholme, Australia.  The variable was
designated PSN J11405890-442957 improperly when it was first posted at the
Central Bureau's TOCP webpage, due to an error in the declination entry; it
has subsequently been changed to the proper form PSN J11405890-4429057 and is
here designated SN 2014ar based on the spectroscopic confirmation reported
below.

     N. Morrell, E. Y. Hsiao, M. Phillips, F. di Mille, David Osip,
Povilas Palunas, and Yuri Beletsky, Las Campanas Observatory (LCO), report the
spectroscopic classification by the Carnegie Supernova Project of PSN
J11405890-4429057 = SN 2014ar, based on an optical sepctrum (range 370-950 nm)
obtained with the LCO 6.5-m Magellan Baade telescope (+ IMACS) on Apr. 19 UT.
The classification was made using the Supernova Identification code (SNID;
Blondin and Tonry 2007, Ap. J. 666, 1024), and it shows that 2014ar is a
normal type-Ic supernova a few days before maximum light, similar to SN
2005aw at two days before maximum brightness.  Strong emission lines from a
surrounding H II region at the redshift of the host galaxy, ESO 266-G15 (zc =
3171 km/s, H I Parkes All-Sky Survey Final Catalogue, via NED) are observed
on the supernova spectrum.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2014 CBAT
2014 April 26                    (CBET 3859)              Daniel W. E. Green