[IAUC] CBET 1253: 20080211 : SUPERNOVA 2008af IN UGC 9640

IAUC mailing list quai en cfa.harvard.edu
Lun Feb 11 14:50:27 ARST 2008


                                                  Electronic Telegram No. 1253
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS en CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT en CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2008af IN UGC 9640
     S. Blondin, Harvard-Smithsonian Center for Astrophysics (CfA), on behalf
of the CfA Supernova Group, reports that a spectrum (range 350-740 nm) of
2008af (cf. CBET 1248), obtained on Feb. 11.48 UT by P. Berlind with the F.
L. Whipple Observatory 1.5-m telescope (+ FAST), shows it to be a type-Ia
supernova a few days past maximum light.  Cross-correlation with a library
of supernova spectra using the "Supernova Identification" code (SNID; Blondin
and Tonry 2007, Ap.J. 666, 1024) indicates that 2008af is most similar to the
type-Ia supernova 1992A (cf. IAUC 5428, 5429) at 7 days past maximum light.
Adopting a recession velocity of 10045 km/s for the host galaxy of 2008af
(from The Updated Zwicky Catalog, http://tdc-www.harvard.edu/uzc/), the
maximum absorption in the Si II line (rest 635.5 nm) is blueshifted by
roughly 11700 km/s.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2008 CBAT
2008 February 11                 (CBET 1253)              Daniel W. E. Green



Más información sobre la lista de distribución Iauc