Electronic Telegram No. 1438
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)
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SUPERNOVA 2008ec IN NGC 7469
     A. Harutyunyan and S. Benetti, Istituto Nazionale di Astrofisica,
Osservatorio Astronomico di Padova; A. Fiorenzano, Telescopio Nazionale
Galileo (TNG); and V. Stanishev, Multidisciplinary Centre for Astrophysics,
Instituto Superior Tecnico, Lisbon, report that a spectrum of 2008ec (cf.
CBET 1437), obtained on July 16.08 UT with the 3.5-m TNG (+ DOLORES; range
350-778 nm, resolution 1.9 nm), shows it to be a type-Ia supernova a few
days before maximum light.  The best fit to this spectrum found by GELATO
(Harutyunyan et al. 2008, http://lanl.arxiv.org/abs/0804.1939) is with a
spectrum of SN 1992A (cf. IAUC 5428, 5429, 5430, 5431, 5432) at five days
before maximum.  Adopting a recession velocity of 4892 km/s for the host
galaxy (Keel 1996, Ap.J. Suppl. 106, 27; via NED), the expansion velocity
deduced from the Si II 635.5-nm absorption is about 12600 km/s.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
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                         (C) Copyright 2008 CBAT
2008 July 16                     (CBET 1438)              Daniel W. E. Green