[IAUC] CBET 1603: 20081204 : SUPERNOVA 2008hv IN NGC 2765
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Electronic Telegram No. 1603
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 2008hv IN NGC 2765
H. Marion, University of Texas; P. Garnavich, University of Notre Dame;
and C. L. Gerardy, Florida State University, obtained a spectrogram (range
0.7-2.4 microns) of 2008hv (cf. CBET 1601) on Dec. 4.52 UT with the Infrared
Telescope Facility (+ SpeX in low-dispersion mode). The spectrum shows a
deep Ca II triplet absorption feature, as well as Mg II and O I lines.
The infrared spectrum is consistent with a type-Ia supernova observed a week
before maximum light. The strong Ca II absorption is particularly broad and
similar to the spectrum of SN 2007qe (CBET 1145). This suggests that 2008hv
is a member of the high-velocity-expansion sub-class of type-Ia supernovae
(Wang et al. 2008, Ap.J. 675, 626).
NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
superseded by text appearing later in the printed IAU Circulars.
(C) Copyright 2008 CBAT
2008 December 4 (CBET 1603) Daniel W. E. Green
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