[IAUC] CBET 1573: 20081120 : SUPERNOVA 2008hg IN IC 1720
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Electronic Telegram No. 1573
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 2008hg IN IC 1720
A. Harutyunyan, Telescopio Nazionale Galileo (TNG); S. Benetti and L.
Tomasella, Istituto Nazionale di Astrofisica-Osservatorio Astronomico di
Padova, report that a noisy spectrum of 2008hg (cf. CBET 1571), obtained on
Nov. 19.03 UT with the 3.5-m TNG (+ DOLORES; range 360-770 nm, resolution
1.0 nm), shows it to be a type-II supernova about one week 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 1999em at 11 days after explosion
(Elmhamdi et al. 2003, MNRAS 338, 939). Adopting a recession velocity of
5684 km/s for the host galaxy (Mathewson and Ford 1996, Ap.J. Suppl. 107,
97; via NED), the expansion velocity deduced from the H-alpha absorption
is about 9500 km/s.
NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
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(C) Copyright 2008 CBAT
2008 November 20 (CBET 1573) Daniel W. E. Green
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