Electronic Telegram No. 611
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 2006eq AND 2006er
     B. Bassett, South African Astronomical Observatory (SAAO); A. Becker,
University of Washington (UW); H. Brewington, Apache Point Observatory (APO);
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; J. Frieman, Fermilab and UC;
P. Garnavich, University of Notre Dame; M. Harvanek, APO; C. Hogan, UW;
J. Holtzman, New Mexico State University; S. Jha, Stanford University (SU);
K. Konishi, University of Tokyo (UT); 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; R.
McMillan, APO; G. Miknaitis, Fermilab; T. Morokuma, UT; 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, SU and
University of Pennsylvania; D. Schneider, Pennsylvania State University; M.
Smith, UP; S. Snedden, APO; N. Takanashi and K. Tokita, UT; K. van der Heyden,
SAAO; S. Watters, APO; N. Yasuda, UT; and C. Zheng, SU, on behalf of the
Sloan Digital Sky Survey II collaboration, report the discovery of two
apparent supernovae on g, r, and i images taken on the night of Aug. 26 with
the SDSS 2.5-m telescope at Apache Point Observatory by the SDSS observing
team.  The objects are offset from putative host galaxies and are not visible
in template images taken in previous years; these template images are
co-added images from a number of previous SDSS images taken under photometric
conditions with good seeing (limiting g magnitude approximately 21.5 or
fainter).  M. Hicken and R. Kirshner report that follow-up SDSS r- and i-band
images taken by M. Calkins using the F. L. Whipple Observatory 1.2-m telescope
on the night of Aug. 29 confirm the presence of both objects.  SN 2006eq, at
R.A. = 21h28m37s.13, Decl. = +1o13'41".2 (equinox 2000.0) had an approximate
g-band discovery magnitude of 18.7; the nearby host galaxy (with position end
figures 37s.60, 48".6) has a prior SDSS spectrum indicating a redshift of
0.0495.  SN 2006er, at R.A. = 0h21m37s.54, Decl. = -1o00'35".9, had an
approximate discovery g magnitude of 19.5; the nearby host galaxy (with
position end figures 37s.89, 38".2) has a prior SDSS spectrum indicating a
redshift of 0.0843.  The colors and magnitudes of both objects are consistent
with those of type-Ia supernovae near peak light at the time of discovery.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2006 CBAT
2006 September 1                 (CBET 611)               Daniel W. E. Green