Electronic Telegram No. 2079
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVAE 2009hq AND 2009mh
     D. Milisavljevic, J. Parrent, and R. Fesen, Dartmouth College, report
that a low-dispersion spectrum (range 410-780 nm) of 2009hq (cf. CBET 1890),
taken on Dec. 15.5 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 2004et at 147 days post-maximum light.  Spectra of 2009mh
(cf. CBET 2074) show it to be a type-Ia supernova at 3-4 weeks after maximum
light; SNID comparison templates best match the type-Ia event 1999aa at 26
days post maximum.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2009 CBAT
2009 December 16                 (CBET 2079)              Daniel W. E. Green