[IAUC] CBET 3492: 20130424 : SUPERNOVA 2013bq

[quai en eps.harvard.edu]

                                                  Electronic Telegram No. 3492
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 2013bq
     A. J. Drake, S. G. Djorgovski, M. J. Graham, A. Mahabal, and R. Williams,
California Institute of Technology; J. L. Prieto, Princeton University; M.
Catelan, Pontificia Universidad Catolica de Chile; S. M. Larson and E.
Christensen, Lunar and Planetary Laboratory, University of Arizona; and R. H.
McNaught, Australian National University, report the Catalina Real-time
Transient Survey discovery of an apparent supernova in unfiltered CCD images:

 SN       2013 UT         R.A. (2000.0) Decl.      Mag.
 2013bq   Apr. 15.36   13 04 08.45  +43 54 07.7    18.3

     L. Tomasella, A. Pastorello, S. Benetti, E. Cappellaro, M. Turatto, and
P. Ochner, Osservatorio Astronomico di Padova, Istituto Nazionale di
Astrofisica, report that optical spectroscopy (range 340-820 nm; resolution
1.3 nm), obtained on Apr. 18.93 UT with the Asiago 1.82-m Copernico Telescope
(+ AFOSC), shows that 2013bq is a type-Ia supernova about 5 days before
maximum light.  The redshift of the host galaxy is about 0.06, as measured
from narrow H_alpha, [O III], and H_beta interstellar emission lines
detected in the spectrum.  The expansion velocity, as deduced from the
position of the Si II 635.5-nm absorption, is about 14300 km/s.  The Asiago
classification spectra are posted at website URL http://graspa.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).


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                         (C) Copyright 2013 CBAT
2013 April 24                    (CBET 3492)              Daniel W. E. Green