[IAUC] CBET 2762: 20110708 : SUPERNOVA 2011ea

[quai en eps.harvard.edu]

                                                  Electronic Telegram No. 2762
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 2011ea
     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 discovery of an apparent supernova
in unfiltered Catalina Sky Survey (CSS) images:

 SN       2011 UT       R.A. (2000.0) Decl.      Mag.      Offset
 2011ea   July 1.18   12 27 36.38  + 4 09 49.5   19.2        -

Nothing was visible at this position on a CSS image from June 8.22 UT
(limiting mag 20.3).

     J. L. Prieto, Carnegie Observatories, reports that a spectrogram (range
380-920 nm; resolution 0.7 nm) of 2011ea was obtained on July 3 UT with WFCCD
mounted on the du Pont 2.5-m telescope at Las Campanas Observatory.  The SNID
cross-correlation software (Blondin and Tonry 2007, Ap.J. 666, 1024) was used
to aid identification and age/redshift estimation.  SN 2011ea has the spectrum
of a normal type-Ia event at maximum light.  The redshift estimated, from the
supernova's features, is 0.106 +/- 0.003.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
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                         (C) Copyright 2011 CBAT
2011 July 8                      (CBET 2762)              Daniel W. E. Green