[IAUC] CBET 1568: 20081111 : SUPERNOVA 2008gz IN NGC 3672
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Mar Nov 11 14:39:18 ARST 2008
Electronic Telegram No. 1568
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 2008gz IN NGC 3672
S. Benetti, Istituto Nazionale di Astrofisica, Osservatorio Astronomico
di Padova; and W. Boschin and H. Harutyunyan, Telescopio Nazionale Galileo
(TNG), report that a spectrum of 2008gz (cf. CBET 1566), obtained on Nov.
11.25 UT with the 3.5-m TNG reflector (+ DOLORES; range 340-800 nm,
resolution 1.0 nm), shows it to be a type-II supernova several weeks after
explosion. The best fit to this spectrum found by GELATO (Harutyunyan et al.
2008, A.Ap. 488, 383) is with a spectrum of SN 1998A (cf. Pastorello et al.
2005, MNRAS 360, 950) at 62 days after explosion. Adopting a recession
velocity of 1862 km/s for the host galaxy (RC3; via NED), the expansion
velocity deduced from the H-alpha absorption is about 6600 km/s.
NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
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(C) Copyright 2008 CBAT
2008 November 11 (CBET 1568) Daniel W. E. Green
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