Electronic Telegram No. 3461
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 2010md
     R. M. Quimby, S. Kulkarni, E. Ofek, and M. M. Kasliwal, California
Institute of Technology; A. Gal-Yam, I. Arcavi, S. Ben-Ami, D. Xu, and A.
Sternberg, Weizmann Institute; J. M. Silverman, S. B. Cenko, and I. K. W.
Kleiser, University of California at Berkeley; P. E. Nugent, Lawrence
Berkeley National Laboratory; and D. A. Howell, Las Cumbres Observatory Global
Telescope and University of California at Santa Barbara, on behalf of the PTF
collaboration, report the discovery of a supernova (mag about 19.1),
designated SN 2010md, on R-band CCD images (calibrated with respect to the
USNO-B catalogue) taken on 2010 May 15.46 UT with the 1.2-m Oschin telescope
at Palomar Observatory in the course of the "Palomar Transient Factory" survey.
The new object is located at R.A. = 16h37m47s.04, Decl. = +6d12'32".3 (equinox
2000.0); no host galaxy has been detected.  The variable brightened to mag
18.0 on 2010 June 20.30.

     C. Inserra, S. J. Smartt, M. Fraser, D. Young, K. Smith, D. Wright, R.
Kotak, M. McCrum, L. Magill, and T.-W. Chen, Queen's University, Belfast; A.
Pastorello and S. Benetti, Osservatorio Astronomico di Padova, Istituto
Nazionale di Astrofisica; S. Valenti, Las Cumbres Observatory Global Telescope
and University of California at Santa Barbara; F. Bresolin, R. Kudritzki, J.
Tonry, E. Magnier, M. Huber, K. Chambers, N. Kaiser, J. Morgan, W. Burgett, J.
Heasley, W. Sweeney, C. Waters, and H. Flewelling, University of Hawaii; C.
Stubbs, Harvard University; P. A. Price, Princeton University; J. Sollerman,
F. Taddia, and M. Ergon, Oscar Klein Centre, Stockholm; G. Leloudas, Dark
Cosmology Centre, Copenhagen; and S. Taubenberger, Max-Planck-Institut fuer
Astrophysik, Garching, report that they obtained a spectrogram of 2010md on
July 20.5 UT with the Calar Alto 2.2-m telescope (+ CAFOS) at Almeria, Spain.
A good match is obtained with SN 2010gx (cf. CBET 2413), a super-luminous
type-Ic supernova, at 4-5 weeks after maximum light.  A cross-correlation with
other super-luminous supernovae confirms a redshift of z = 0.1 for the object.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2013 CBAT
2013 April 10                    (CBET 3461)              Daniel W. E. Green