Electronic Telegram No. 1160
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2007rz IN NGC 1590
     N. Morrell, G. Folatelli and M. Stritzinger, on behalf of the Carnegie
Supernova Project, report that a spectrogram (range 380-912 nm) of 2007rz
(cf. CBET 1158), obtained on Dec. 10.26 UT with the du Pont 2.5-m telescope
(+ WFCCD spectrograph) at Las Campanas Observatory, shows this to be a
type-Ic supernova roughly one week after maximum light.  Adopting for the
host galaxy the NED recession velocity of 3897 km/s (from de Vaucouleurs et
al. 1991, Third Reference Catalogue of Bright Galaxies), the 'superfit'
spectrum-comparison code (Howell et at. 2005, Ap.J. 634, 1190) gives a very
good match to the spectrum of SN 2004fe at 7-8 days after maximum light.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2007 CBAT
2007 December 11                 (CBET 1160)              Daniel W. E. Green