[IAUC] CBET 2070: 20091209 : SUPERNOVAE 2009lu, 2009md, 2009me, AND 2009mf

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                                                  Electronic Telegram No. 2070
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS en CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT en CFA.HARVARD.EDU (science)
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SUPERNOVAE 2009lu, 2009md, 2009me, AND 2009mf
     T. N. Steele, M. T. Kandrashoff, and A. V. Filippenko, University of
California, Berkeley, report that inspection of a CCD spectrum (range 350-1020
nm), obtained on Dec. 9 UT with the 3-m Shane reflector (+ Kast) at Lick
Observatory, shows that SN 2009md (CBET 2065) is a type-II supernova.
Cross-correlation with a library of supernova spectra using the "SuperNova
IDentification" code (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024) indicates
that 2009md is most similar to SN 2005cs at four days past maximum; the
H-alpha emission component greatly dominates over H-alpha absorption.  SN
2009mf (CBET 2067) is also a type-II supernova, again with highly dominant
H-alpha emission; cross-correlation using SNID indicates that 2009mf is most
similar to SN 2004et at two days before maximum.  SN 2009me (CBET 2066) is a
type-Ia supernova near maximum light; cross-correlation with SNID indicates
that 2009me is most similar to SN 2003du at two days past maximum.  A noisy
spectrum of SN 2009lu (CBET 2044) indicates that it is also a type-Ia
supernova; cross-correlation with SNID suggests an age of three weeks past
maximum light.


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                         (C) Copyright 2009 CBAT
2009 December 9                  (CBET 2070)              Daniel W. E. Green