[IAUC] CBET 2640: 20110125 : SUPERNOVA 2011M IN UGC 3218 = PSN J05004155+6214386

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                                                  Electronic Telegram No. 2640
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 2011M IN UGC 3218 = PSN J05004155+6214386
     Further to CBET 2634, L. Jewett, S. B. Cenko, W. Li, and A. V. Filippenko
report the LOSS discovery of an apparent supernova on unfiltered KAIT images:

 SN       2011 UT         R.A. (2000.0) Decl.     Mag.      Offset
 2011M    Jan. 19.33    5 00 41.55  +62 14 38.6   18.2    14".6 W, 0".6 S

Additional KAIT magnitudes for 2011M:  Jan. 14.30 UT, [19.5; 20.30, 18.0.
This object was listed on the Central Bureau's TOCP webpage with the
provisional designation PSN J05004155+6214386.  R. A. Koff (Bennett, CO,
U.S.A., 25-cm reflector) reports that twenty co-added CCD images taken
on Jan. 22.073 yield mag 17.1 and position end figures 41s.27, 38".3.
The type-Ia supernova 2006le also appeared in UGC 3218 (cf. IAUC 8770).

     J. Parrent, D. A. Howell, R. Ellis, A. Gal-Yam, and P. E. Nugent, on behalf
of the "Palomar Transient Factory" group (http://www.astro.caltech.edu/ptf/),
report that a CCD spectrum (range 350-800 nm) was taken on the Gemini North
telescope on Jan. 22 UT, revealing that SN 2011M = PSN J05004155+6214386 is a
type-Ia supernova.  Comparisons to other spectra using "Superfit" (Howell et al.
2005, Ap.J. 634, 1190) indicate a close match to that of SN 1989B, at five days
before maximum light.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
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                         (C) Copyright 2011 CBAT
2011 January 25                  (CBET 2640)              Daniel W. E. Green