Electronic Telegram No. 3458
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 2013au
     S. Valenti, M. L. Graham, and D. A. Howell, Las Cumbres Observatory
Global Telescope (LCOGT) and University of California at Santa Barbara; D.
Sand, Texas Tech University; J. T. Parrent, LCOGT and Dartmouth College; S. J.
Smartt, R. Kotak, D. Wright, M. Fraser, T.-W. Chen, L. Magill, M. McCrum, and
K. Smith, Queen's University, Belfast; 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; and P. A. Price, Princeton University, report an
independent discovery SN 2013au (cf. CBET 3451) with the Pan-STARRS1 telescope.
The new object was first detected at AB magnitude zP1 = 19.36 on Mar. 19.42 UT
at R.A. = 12h21m14s.20, Decl. = +47d29'51".6 (equinox 2000.0), and it rose in
brightness to zP1 = 17.81 by Apr. 1.5.  A spectrogram (range 350-1000 nm),
obtained robotically on Apr. 3.34 with the FLOYDS spectrograph at the "Faulkes
Telescope North" on Haleakala, shows 2013au to be a type-Ia supernova around
maximum.  Comparisons with a library of supernova spectra using the "GELATO"
code (Harutyunyan et al. 2008, A.Ap. 488, 383) yield the best match to SN
2003du (Stanishev et al. 2007, A.Ap. 469, 645).


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
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                         (C) Copyright 2013 CBAT
2013 April 9                     (CBET 3458)              Daniel W. E. Green