[IAUC] CBET 3932: 20140818 : SUPERNOVA 2014bz = PSN J13560419-4335099

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                                                  Electronic Telegram No. 3932
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 2014bz = PSN J13560419-4335099
[Note:  this text replaces that on CBET 3931 (discoverer's affiliation).]
     E. Conseil, Robecq, France, on behalf of the TAROT collaboration, reports
the discovery of an apparent supernova (R magnitude 16.9 +/- 0.4) on public
images (limiting mag 18.0) obtained on May 6.157 UT with the TAROT 0.25-m
robotic telescope at La Silla Observatory in Chile.  The new object is located
at R.A. = 13h56m04s.19, Decl. = -43o35'09".9 (equinox J2000.0), which is 12"
east and 36" south of the nucleus of PGC 547157.  Nothing is visible at this
position in an image taken on Apr. 21.2 with the same equipment (total
exposure time 360 s for each image).  The variable was designated PSN
J13560419-4335099 when it was posted at the Central Bureau's TOCP webpage and
is here designated SN 2014bz based on the spectroscopic confirmation reported
below.  An image taken on May 9.548 by M. Locke and A. Cotiga at Christchurch,
New Zealand is posted at https://www.flickr.com/photos/malclocke/14142464192/,
and an image taken on May 10.436 by P. Stewart at Timaru, New Zealand is
posted at website URL https://www.flickr.com/photos/astrostew/14156197234/.

     M. Childress, C. Owen, R. Scalzo, F. Yuan, and B. Schmidt, Australian
National University (ANU); and B. Tucker, ANU and University of California at
Berkeley, report on spectroscopic classification of PSN J13560419-4335099 = SN
2014bz via a 40-min spectrogram obtained with the Wide Field Spectrograph (cf.
Dopita et al. 2007, Ap. Space Sci. 310, 255) on June 11.31 UT with the ANU
2.3-m telescope at Siding Spring and the B3000/R3000 gratings (wavelength
range 350-980 nm at 0.1-nm resolution).  The spectrum indicates that 2014bz
is a type-Ia supernova about 30 days past maximum light.  Classification with
SNID (Blondin and Tonry 2007, Ap.J. 666, 1024) shows a good match to SN
2002kf at phase +30 days, and the preferred SNID redshift is about 0.025,
consistent with the apparent host galaxy, PGC 547157 (z = 0.0225; Jones et
al. 2009, 6dF Galaxy Survey Data Release 3).


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2014 CBAT
2014 August 18                   (CBET 3932)              Daniel W. E. Green