Electronic Telegram No. 726
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://cfa-www.harvard.edu/iau/cbat.html


SUPERNOVAE 2006mt-2006mx
     Further to CBETs 611 and 713, B. Bassett, South African Astronomical
Observatory (SAAO); A. Becker, University of Washington (UW); H. Brewington,
Apache Point Observatory (APO); C. Choi, Seoul National University (SNU);
D. Cinabro, Wayne State University; F. DeJongh, Fermilab; J. Dembicky, APO;
D. L. DePoy, Ohio State University (OSU); B. Dilday, University of Chicago
(UC); M. Doi, University of Tokyo (UoT); J. Frieman, Fermilab and UC;
P. Garnavich, University of Notre Dame; M. Harvanek, APO; C. Hogan, UW;
J. Holtzman, New Mexico State University; M. Im, SNU; S. Jha, Stanford
University (SU); K. Konishi, UoT; 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 and D. McGinnis,
Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab; T. Morokuma, UoT;
R. Nichol, University of Portsmouth (UP); K. Pan, APO; J. L. Prieto, OSU; M.
Richmond, Rochester Institute of Technology; A. Riess, STScI; R. Romani, SU;
M. Sako, University of Pennsylvania; G. Saurage, APO; D. Schneider,
Pennsylvania State University; M. Smith, UP; S. Snedden, APO; N. Takanashi
and K. Tokita, UoT; K. van der Heyden, SAAO; S. Watters, APO; C. Wheeler,
University of Texas; N. Yasuda, UoT; and C. Zheng, SU, on behalf of the
Sloan Digital Sky Survey II collaboration, report the discovery of five new
supernovae on multiple g, r, and i images taken with the SDSS 2.5-m
telescope at APO by the SDSS observing team.  J. Marriner, D. McGinnis, G.
Miknaitis, G. Saurage, W. Ketzeback, J. Dembicky, and R. McMillan report
that spectroscopic observations with the ARC 3.5-m telescope at APO on Oct.
27, 29, and 31 UT indicate that two of the events are type-Ia supernovae
(2006mt and 2006mv) and the other three (2006mu, 2006mw, 2006mx) are probable
type-Ia supernovae. The discovery magnitudes tabulated below are all SDSS
g magnitudes.  Spectroscopic redshifts are given in the column labelled
"z".  Peak dates (all 2006) are approximate estimates from early fits to
the multi-band light curves or from the spectra.

SN       Discov.       R.A. (2000.0) Decl.     Mag.    z    Estimated
         Date UT                                            Peak Date
2006mt   Oct. 16     0 59 31.12  - 0 15 23.5   22.0   0.22   Oct. 28
2006mu   Oct. 17    22 24 00.68  + 0 49 16.9   21.2   0.14   Oct. 22
2006mv   Oct. 20     2 30 55.46  + 0 56 46.7   21.9   0.17   Nov.  3
2006mw   Oct. 21     3 25 08.47  - 0 02 26.1   22.1   0.12   Oct. 30
2006mx   Oct. 24    20 03 27.33  + 0 34 12.8   21.2   0.13   Nov.  2


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

                         (C) Copyright 2006 CBAT
2006 November 8                  (CBET 726)               Daniel W. E. Green