[IAUC] CBET 2687: 20110410 : SUPERNOVA 2011be = PSN J09225262+2159157

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                                                  Electronic Telegram No. 2687
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 2011be = PSN J09225262+2159157
     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, Carnegie Observatories; M. Catelan, Pontificia Universidad
Catolica de Chile; E. C. Beshore and S. M. Larson, Lunar and Planetary
Laboratory, University of Arizona; and E. Christensen, Gemini Observatory,
report the Catalina Real-time Transient Survey's discovery of an apparent
supernova in public images from the Catalina Sky Survey (CSS).

 SN       2011 UT       R.A. (2000.0) Decl.      Mag.      Offset
 2011be   Mar. 25.14   9 22 52.62  +21 59 15.7   17.7    6".2 W, 43".7 N

Further unfiltered CCD magnitude estimates of 2011be:  Mar. 11.23 UT, [19.7
(CSS); 26.17, 17.1 (remotely using a 0.5-m LB-1 telescope at Rodeo, NM, U.S.A.).

     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
J09225262+2159157 = SN 2011be was obtained on Apr. 2 UT by Marion 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 the object is a type-Ia
supernova near maximum light.  Using a redshift of z = 0.0348, measured
from host-galaxy emission lines, the velocity of the Si II 635.5-nm feature
is estimated to be approximately 10700 km/s.


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                         (C) Copyright 2011 CBAT
2011 April 10                    (CBET 2687)              Daniel W. E. Green