[IAUC] CBET 3323: 20121203 : SUPERNOVA 2012hc IN NGC 986A (ESO 299-6) = PSN J02324096-3917562

Dom Dic 2 21:55:51 ART 2012

                                                  Electronic Telegram No. 3323
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 2012hc IN NGC 986A (ESO 299-6) = PSN J02324096-3917562
     M. Cifuentes, G. Pignata, and Y. Apostolovski, Universidad Andres Bello;
J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, R. Cartier, F. Forster, S. Silva,
F. Carrasco, P. Sanchez, C. Hervias, and R. Ramirez, Universidad de Chile; F.
Aros, Pontificia Universidad Catolica de Chile; B. Conuel, Wesleyan
University; G. Folatelli, IPMU, University of Tokyo; and D. Reichart, K.
Ivarsen, J. Haislip, A. Crain, D. Foster, M. Nysewander, and A. LaCluyze,
University of North Carolina at Chapel Hill, on behalf of the CHASE project
(which is part of the Millennium Center for Supernova Science collaboration),
report the discovery of an apparent supernova (mag approximately 14.1) on an
unfiltered image taken on Nov. 10.16 UT with the 0.41-m 'PROMPT 4' telescope
located at Cerro Tololo.  The new object is located at R.A. = 2h32m40s.96 +/-
0".2, Decl. = -39o17'56".2 +/- 0".2 (equinox 2000.0).  Nothing is visible at
this position on a stack of fifteen 40-s CHASE images taken between Jan. 4.13
and Nov. 4.29 (limiting mag 20.6).  The variable was designated PSN
J02324096-3917562 when it was posted at the Central Bureau's TOCP webpage and
is here designated SN 2012hc based on the spectroscopic confirmation reported
below.  Additional magnitudes for 2012hc:  Nov. 4.29, [18.5 (CHASE); 15.531,
15.2 (Joseph Brimacombe, Cairns, Australia; 43-cm CDK Planewave telescope +
infrared filter, bandpass > 700 nm; position end figures 40s.94, 56".3; image
posted at URL http://www.flickr.com/photos/43846774@N02/8198000641/.

     G. Pignata and F. Bufano, Universidad Andres Bello; S. Gonzalez-Gaitan,
S. Marchi, F. Forster, J. Anderson, and C. Gutierrez, Universidad de Chile; S.
Taubenberger, Max-Planck-Institute fuer Astrophysik, Garching; S. Valenti,
University of California at Santa Barbara and Las Cumbres Observatory Global
Telescope; A. Pastorello and S. Benetti, Istituto Nazionale di Astrofisica,
Padova Astronomical Observatory; S. J. Smartt, K. Smith, D. Young, and C.
Inserra, 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 (cf. Valenti et al., as posted at website URL
http://www.astronomerstelegram.org/?read=4037), report on optical spectroscopy
(range 360-910 nm) obtained on Nov. 12.23 UT with the New Technology Telescope
(+ EFOSC2), showing PSN J02324096-3917562 = SN 2012hc to be a type-II
supernova at one week after explosion.  PESSTO classification spectra can be
obtained at website URL http://www.pessto.org/; classification is made via
SNID (Blondin and Tonry 2007, Ap.J. 666, 1024) and GELATO (Harutyunyan et al.
2008, A.Ap. 488, 383).


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

                         (C) Copyright 2012 CBAT
2012 December 3                  (CBET 3323)              Daniel W. E. Green