[IAUC] CBET 656: 20061003 : SUPERNOVAE 2006hu, 2006hv, 2006hw, 2006hx

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                                                  Electronic Telegram No. 656
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 2006hu, 2006hv, 2006hw, 2006hx
     Further to CBETs 611 and 654, 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
four new type-Ia 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, and J. Dembicky report that observations with the ARC 3.5-m
telescope at APO on Oct. 1 UT indicate that the four new objects are all
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.

SN       Discov.       R.A. (2000.0) Decl.     Mag.    z    Estimated
         Date  UT                                           Peak Date
2006hu   Sept. 18    3 34 22.72  - 1 07 23.5   22.0   0.14   Sept.27
2006hv   Sept. 18   22 27 19.99  + 1 01 51.4   22.7   0.15   Oct.  2
2006hw   Sept. 22    3 13 03.44  - 0 28 17.9   22.5   0.14   Oct.  3
2006hx   Sept. 28    1 13 57.31  + 0 22 18.0   21.2   0.05   Oct.  6


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                         (C) Copyright 2006 CBAT
2006 October 3                   (CBET 656)               Daniel W. E. Green