[IAUC] CBET 3479: 20130420 : SUPERNOVA 2013bg

[quai en eps.harvard.edu]

                                                  Electronic Telegram No. 3479
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 2013bg
     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 Siding
Spring Survey images:

 SN       2013 UT        R.A. (2000.0) Decl.      Mag.
 2013bg   Apr. 4.63   10 20 42.87  - 6 26 56.8    18.1

     S. Taubenberger, Max-Planck-Institut fuer Astrophysik, Garching; S.
Hachinger, University of Wuerzburg; N. Elias-Rosa and A. Morales-Garoffolo,
Institut de Ciencies de l'Espai, IEEC, Consejo Superior de Investigaciones
Cientificas, Barcelona; S. Benetti and A. Pastorello, Osservatorio Astronomico
di Padova, Istituto Nazionale di Astrofisica; S. Valenti, Las Cumbres
Observatory Global Telescope and University of California at Santa Barbara;
M. Fraser, S. J. Smartt, K. Smith, and D. Young, Queen's University, Belfast;
M. Sullivan, University of Southampton; and A. Gal-Yam and O. Yaron, Weizmann
Institute for Science, on behalf of the PESSTO collaboration (see website URL
http://www.pessto.org), report that they obtained spectra of 2013bg on Apr. 5
on the European Southern Observatory's New Technology Telescope (+ EFOSC2 and
Grism 13; range 398.5-931.5 nm; 1.8-nm resolution) at La Silla.  The spectrum
of 2013bg is found to be consistent with several normal type-Ia supernovae
before maximum light at a redshift of 0.066.  The 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      superseded by text appearing later in the printed IAU Circulars.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 2013 CBAT
2013 April 20                    (CBET 3479)              Daniel W. E. Green