Electronic Telegram No. 339
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)
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SUPERNOVAE 2005mh-2005mq
     Further to CBET 315, J. Barentine, Apache Point Observatory (APO); B.
Bassett, University of Portsmouth (UP); A. Becker, University of
Washington; H. Brewington, APO; F. DeJongh, Fermilab; J. Dembicky, APO; D.
L. DePoy, Ohio State University (OSU); B. Dilday, University of Chicago
(UC); M. Doi, University of Tokyo; E. Elson, South African Astronomical
Observatory (SAAO); J. Frieman, Fermilab and UC; P. Garnavich, University
of Notre Dame; M. Harvanek, APO; T. Gueth and J. Holtzman, New Mexico State
University; K. Konishi, University of Tokyo; J. Krzesinski, APO; H.
Lampeitl, Space Telescope Science Institute (STScI); R. Kessler, UC; B.
Ketzeback, D. Long, O. Malanushenko, and V. Malanushenko, APO; J. Marriner,
Fermilab; J. L. Marshall, OSU; R. McMillan, APO; G. Miknaitis, Fermilab;
T. Morokuma, University of Tokyo; R. Nichol, UP; K. Pan, APO; J. L. Prieto,
OSU; M. Richmond, Rochester Institute of Technology; A. Riess, STScI; R.
Romani and M. Sako, Stanford University; D. Schneider, Pennsylvania State
University; M. Smith, UP; S. Snedden, APO; M. Subbarao, UC and Adler
Planetarium; N. Takanashi and K. Tokita, University of Tokyo; K. van der
Heyden, SAAO; and N. Yasuda, University of Tokyo, on behalf of the Sloan
Digital Sky Survey II collaboration, report the discovery of ten
supernovae on multiple g, r, and i images taken with the SDSS 2.5-m
telescope at Apache Point Observatory by the SDSS observing team.
Spectroscopy was obtained with the Hobby-Eberly Telescope and the ARC 3.5-m
telescope, showing six of the new supernovae to be type-Ia events, one to
be a probable type-Ia event (2005mh), one to be a type-II event (2005mk),
one to be a probable type-IIn event (2005mj), and one to be a type-Ib
supernova (2005mn).  The discovery magnitudes tabulated below are all g
magnitudes.  Spectroscopic redshifts are given in the column labelled z.
Peak g magnitudes and dates (all 2005) are estimated from fits to the
multi-band light curves.


SN      Discov.      R.A. (2000.0) Decl.     Mag.    z     Estimated Peak
        Date                                                Date      Mag.
2005mh  Oct. 31    2 44 56.68  + 0 12 12.9   23.1   0.39   Nov.  8   22.4
2005mi  Nov.  1   22 21 02.65  - 0 44 53.4   22.6   0.22   Nov. 12   20.9
2005mj  Nov.  3   21 31 49.44  - 1 04 09.8   22.5   0.21   Nov. 16   21.4
2005mk  Nov.  8   22 42 40.64  + 0 49 58.9   21.9   0.15   Nov. 16   21.1
2005ml  Nov. 14    2 14 04.42  - 0 14 21.1   20.5   0.12   Nov. 26   19.0
2005mm  Nov. 20    0 13 09.55  + 1 08 43.9   22.2   0.38   Nov. 12   22.3
2005mn  Nov. 23    3 49 18.44  - 0 41 31.4   21.2   0.05   Dec.  5   20.2
2005mo  Nov. 23    3 50 12.90  - 0 14 24.8   22.5   0.28   Nov. 16   22.2
2005mp  Nov. 24    1 04 45.68  + 0 03 20.3   22.3   0.27   Dec.  5   21.8
2005mq  Nov. 27   23 20 21.79  - 0 20 59.6   22.4   0.35   Dec.  8   22.2


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

                         (C) Copyright 2005 CBAT
2005 December 28                 (CBET 339)               Daniel W. E. Green