[IAUC] CBET 2511: 20101020 : SUPERNOVA 2010iw
quai en eps.harvard.edu
quai en eps.harvard.edu
Mie Sep 14 16:19:36 ART 2011
Electronic Telegram No. 2511
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 2010iw
G. H. Marion, Harvard-Smithsonian Center for Astrophysics and University
of Texas; J. Vinko, University of Szeged; and J. C. Wheeler, University of
Texas, report that a spectrum (range 430-1000 nm) of SN 2010iw (cf. CBET 2505)
was obtained by S. Rostopchin on Oct. 19 UT with the 9.2-m Hobby-Eberly
Telescope (+ Marcario Low-Resolution Spectrograph). Cross-correlation with a
library of supernova spectra using the "Supernova Identification" code (SNID;
Blondin and Tonry 2007, Ap.J. 666, 1024) shows that 2010iw is a peculiar
type-Ia supernova near maximum brightness. The spectrum most closely
resembles that of SN 2000cx at maximum, but the measured velocity of Si II
(635.5 nm) for 2010iw is 10300 km/s, which is much lower than reported for SN
2000cx at this epoch by Li et al. (2003, PASP 115, 453).
NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
superseded by text appearing later in the printed IAU Circulars.
(C) Copyright 2010 CBAT
2010 October 20 (CBET 2511) Daniel W. E. Green
Más información sobre la lista de distribución Iauc