[IAUC] CBET 1727: 20090320 : SUPERNOVAE 2009aw AND 2009ax

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                                                  Electronic Telegram No. 1727
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 2009aw AND 2009ax
     D. Sand, Harvard-Smithsonian Center for Astrophysics and Las Cumbres
Observatory Global Telescope Network; M. L. Graham and C. Bildfell, University
of Victoria; D. W. Just, S. Herbert-Fort, and S. Sivanandam, Steward
Observatory; C. J. Pritchet and H. Hoekstra, Leiden University; and D.
Zaritsky, Steward Observatory, report that two supernovae wre discovered on
g'- and r'-band images obtained at the Canada-France-Hawaii Telescope (+
Megacam).  The publicly available "Supernova Identification" code (Blondin and
Tonry 2007, Ap.J. 666, 1024) was utilized for determining that both objects
are normal type-Ia supernovae from spectroscopy obtained with the MMT (+
Hectospec) at Mount Hopkins.

SN       2009 UT     R.A. (2000.0) Decl.       g'     r'    Offset
2009aw   Jan. 25    6 31 47.08  +24 55 08.9   19.8   19.5   5".17 E, 4".28 N
2009ax   Jan. 27    6 15 35.80  +48 18 50.0   20.4   19.9   0".82 W, 0".38 N

A spectrum of 2009aw taken on Jan. 29 UT shows it to be a type-Ia supernova
at z = 0.08 and close to maximum light; its host galaxy has magnitudes g' =
19.56 +/- 0.02 and r' = 18.78 +/- 0.01.  A spectrum of 2009ax taken on Feb.
1 shows it to be a type-Ia supernova at z = 0.11 and 15-20 days after
maximum light; its host galaxy has magnitudes g' = 21.03 +/- 0.02 and r' =
20.49 +/- 0.01.


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                         (C) Copyright 2009 CBAT
2009 March 20                    (CBET 1727)              Daniel W. E. Green