Electronic Telegram No. 3832
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 2014ae IN MCG +12-11-15
     V. Lipunov reports the discovery by Pavel Balanutsa with the MASTER-Amur
auto-detection system (double 0.40-m f/2.5 reflector of an apparent supernova
(mag 15.4) on unfiltered CCD images (limiting mag 18.1) obtained on Mar. 3.610
UT.  The new object is located at R.A. = 11h19m20s.95, Decl. = +72d48'57".3
(equinox 2000.0), which is 11" east and 29" south of the center of the galaxy
PGC 34635 = MCG +12-11-15.  The variable was already visible at mag 15.2 near
the edge of survey images obtained with the same telescope on Mar. 2.548.  D.
Denisenko and E. Gorbovskoy report that nothing was visible at this position
on MASTER-Amur archival images taken on 2011 Nov. 20.69 (limiting R-band
magnitude 18.6).  The discovery, confirmation, and reference images are posted
at website URL http://master.sai.msu.ru/static/OT/111920.95724857.3.png.

     L. Tomasella, S. Benetti, E. Cappellaro, A. Pastorello, P. Ochner, N.
Elias-Rosa, and M. Turatto, Osservatorio Astronomico di Padova, Istituto
Nazionale di Astrofisica, report that an optical spectrogram (range 340-820
nm; resolution 1.3 nm) of 2014ae, obtained on Mar. 9.14 UT with the Asiago
1.82-m Copernico Telescope (+ AFOSC), shows it to be a type-Ia supernova.
Adopting for the host galaxy (MCG +12-11-15) a heliocentric velocity 6663
km/s (Falco et al. 1999, PASP 111, 438; via NED), a good match is found with
several type-Ia supernovae near maximum light.   An expansion velocity of
about 10300 km/s is derived from the minimum of the Si II 635-nm line.  The
Asiago classification spectra are posted at URL http://sngroup.oapd.inaf.it;
classification was made via GELATO  (Harutyunyan et al. 2008, A.Ap. 488, 383)
and SNID (Blondin and Tonry 2007, Ap.J. 666, 1024).


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2014 CBAT
2014 March 21                    (CBET 3832)              Daniel W. E. Green