[IAUC] CBET 2762: 20110708 : SUPERNOVA 2011ea
quai en eps.harvard.edu
quai en eps.harvard.edu
Mie Sep 14 16:18:46 ART 2011
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
superseded by text appearing later in the printed IAU Circulars.
(C) Copyright 2011 CBAT
2011 July 8 (CBET 2762) Daniel W. E. Green
Más información sobre la lista de distribución Iauc