[IAUC] CBET 2073: 20091213 : SUPERNOVAE 2009ii, 2009ik, AND 2009lx

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                                                  Electronic Telegram No. 2073
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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SUPERNOVAE 2009ii, 2009ik, AND 2009lx
     D. Milisavljevic, J. Parrent, and R. Fesen, Dartmouth College, report
that a low-dispersion spectrum (range 410-780 nm) of 2009ii (cf. CBET 1920),
taken on Dec. 12.5 UT with the 2.4-m Hiltner telescope (+ CCDS) at MDM
Observatory, supports a type-II supernova classification; comparison with a
library of supernova spectra using the "Supernova Identification" tool (SNID;
Blondin and Tonry 2007, ApJ. 666, 1024) provides a good match with the
type-IIP event 1992H at approximately 100 days post-maximum light.  Spectra
of 2009ik (cf. CBET 1923) show it to be a type-Ia supernova; SNID comparison
templates best match the type-Ia event 2003du at 109 days post-maximum.
Spectra of 2009lx (cf. CBET 2048) show pronounced H_alpha emission indicative
of a type-II supernova; SNID templates best match the type-IIP event 2004et
at two weeks post-maximum light.


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                         (C) Copyright 2009 CBAT
2009 December 13                 (CBET 2073)              Daniel W. E. Green