Electronic Telegram No. 2430
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
CBAT Director:  Daniel W. E. Green; Room 209; Dept. of Earth and Planetary
 Sciences; Harvard University; 20 Oxford St.; Cambridge, MA  02138; U.S.A.
e-mail:  cbat@iau.org; cbatiau@eps.harvard.edu
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVA 2010he IN NGC 1120
     A. Harutyunyan, Telescopio Nazionale Galileo (TNG); and S. Benetti and
F. Bufano, Istituto Nazionale di Astrofisica, Osservatorio Astronomico
di Padova, report that a spectrum of the possible supernova near NGC
1120 announced on CBET 2421, obtained on Aug. 29.13 UT with the 3.5-m TNG
reflector (+ DOLORES; range 350-800 nm, resolution 1.1 nm), shows it to be
a type-Ia supernova several days after maximum light.  The best fits to this
spectrum found by GELATO (Harutyunyan et al. 2008, A.Ap. 488, 383; publicly
available at https://gelato.tng.iac.es) are with spectra of type-Ia supernovae
at 7-10 days after maximum light, adopting a recession velocity of 8518 km/s
for NGC 1120 (Huchra et al. 1993, A.J. 105, 1637; via NED).  The expansion
velocity deduced from the Si II 635.5-nm absorption is then about 10000 km/s.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
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                         (C) Copyright 2010 CBAT
2010 August 29                   (CBET 2430)              Daniel W. E. Green