[IAUC] CBET 2925: 20111130 : SUPERNOVA 2011ik IN UGC 1871 = PSN J02250409+2212519

[quai en eps.harvard.edu]

                                                  Electronic Telegram No. 2925
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 2011ik IN UGC 1871 = PSN J02250409+2212519
     S. Howerton, Arkansas City, KS, U.S.A.; A. J. Drake, S. G. Djorgovski,
A. Mahabal, M. J. Graham, and R. Williams, California Institute of Technology;
J. L. Prieto, Princeton University; M. Catelan, Pontificia Universidad
Catolica de Chile; R. H. McNaught and G. Garradd, Australian National
University; E. C. Beshore and S. M. Larson, Lunar and Planetary Laboratory,
University of Arizona; and E. Christensen, Gemini Observatory, report the
discovery of an apparent supernova in public images from the Mount Lemmon
Survey:

 SN       2011 UT       R.A. (2000.0) Decl.      Mag.      Offset
 2011ik   Nov. 24.20   2 25 04.09  +22 12 51.9   17.9    7".1 W, 9".3 S

The variable was designated PSN J02250409+2212519 when it was posted at the
Central Bureau's TOCP webpage and is here designated SN 2011ik based on the
spectroscopic confirmation reported below.  Additional CCD magnitudes for
2011ik:  Nov. 26.292 UT, 18.7 (Joseph Brimacombe, Cairns, Australia; observed
remotely using a 51-cm RCOS telescope + STL11K camera + luminance filter at
the New Mexico Skies Observatory near Mayhill, New Mexico; position end
figures 04s.19, 53".6; image posted at the following website URL:
http://www.flickr.com/photos/43846774@N02/6411553661/); 27.350, 17.2 (R. A.
Koff, Bennett, CO, USA; Meade 0.25-m f/10 reflector + unfiltered Apogee
AP-47p camera; limiting magnitude 18.7; marginal detection in galaxy glow;
position end figures 04s.06, 53".0; UCAC3 reference stars).

     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 J02250409+2212519 = 2011ik 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 2011ik is a type-Ia supernova more than two weeks after maximum light.
A good fit is found to the template of the normal type-Ia supernova 2003cg at
+24 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 2925)              Daniel W. E. Green