[IAUC] CBET 2924: 20111130 : SUPERNOVA 2011ij = PSN J06580768+3713117

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                                                  Electronic Telegram No. 2924
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 2011ij = PSN J06580768+3713117
     L. Elenin, Lyubertsy, Russia, reports his discovery of an apparent
supernova on four 240-s images taken remotely at the ISON-NM Observatory near
Mayhill, NM, USA, with a 0.45-m f/2.8 telescope (+ KAF09000 camera chip) on
Nov. 18.230 UT.  The new object is located at R.A. = 6h58m07s.68 +/- 0".1,
Decl. = +37d13'11".7 +/- 0".1 (equinox 2000.0; UCAC3 reference stars), which
is about 17" west and 6" north of the center of the presumed host galaxy.
Nothing is visible at this position on eight Palomar Sky Survey images.  The
object was designated PSN J06580768+3713117 when it was posted at the Central
Bureau's TOCP webpage and is here designated SN 2011ij based on the
spectroscopic confirmation reported below.  The discovery image was posted at
website URL http://spaceobs.org/images/TOCP/PSNJ06580768+3713117.jpg.
Additional CCD magnitudes for 2011ij (unfiltered unless noted otherwise):
Nov. 18.505, 18.8 (Joseph Brimacombe, Cairns, Australia; luminance filter;
position end figures 07.67, 11".2; image posted at the following website URL:
http://www.flickr.com/photos/43846774@N02/6362300663/); 19.087, 18.9 (F. Luppi
and Luca Buzzi, Varese, Italy, 38-cm f/6.8 telescope; position end figures
07s.67, 11".1 (reference stars from CMC-14 catalogue; image posted at website
URL http://www.astrogeo.va.it/pub/TOCP/PSN_P2095477.jpg); 19.264, 18.8 (R. A.
Koff, Bennett, CO, USA; Meade 0.25-m f/10 reflector + Apogee AP-47p camera;
limiting magnitude 20.0; position end figures 07s.72, 09".7; UCAC3 reference
stars; 22.486, 17.9 (Elenin; discovery telescope); 28.477, 18.5 (Elenin).

     G. H. Marion, Harvard-Smithsonian Center for Astrophysics (CfA), on
behalf of the CfA Supernova Group, reports that a spectrum (range 340-740 nm)
of PSN J06580768+3713117 = 2011ij was obtained on Nov. 26 UT by P. Berlind
with the F. L. Whipple Observatory 1.5-m telescope (+ FAST).  Cross-
correlation with a library of supernova spectra using the "Supernova
Identification" code (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024) shows
that 2011ij is a type-Ia supernova about one week after maximum light.  A
good fit is found to the template of the normal type-Ia supernova 2006cp at
+7 days.


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

                         (C) Copyright 2011 CBAT
2011 November 30                 (CBET 2924)              Daniel W. E. Green