[IAUC] CBET 826: 20070131 : SUPERNOVA 2007R IN UGC 4008

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                                                  Electronic Telegram No. 826
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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SUPERNOVA 2007R IN UGC 4008
     A. Harutyunyan, S. Benetti, M. Turatto, and E. Cappellaro, Istituto
Nazionale di Astrofisica, Osservatorio Astronomico di Padova;
A. Magazzu', Telescopio Nazionale Galileo (TNG), report that a
spectrum of SN 2007R (cf. CBET 823), obtained on Jan. 31.08 UT with
the 3.5-m TNG (+ DOLORES; range 330-810 nm, resolution 1.8 nm), shows
it to be a type-Ia supernova near maximum light.  The spectrum closely
resembles that of SN 1996X (Salvo et al. 2001, MNRAS 321, 254) at
1 day after maximum light.
The expansion velocity, deduced from the Si II 635.5-nm absorption
feature, is about 11600 km/s (the recession velocity of the parent
galaxy is assumed to be 9219 km/s, from de Vaucouleurs et al. 1991,
Third Reference Cat. of Bright Galaxies, via NED).


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                         (C) Copyright 2007 CBAT
2007 January 31                  (CBET 826)               Daniel W. E. Green