Electronic Telegram No. 624
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


SUPERNOVA 2006fo
     Further to CBETs 611, 621, and 623, 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, 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; 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; N. Yasuda, UoT; and C. Zheng, SU, on behalf of the Sloan
Digital Sky Survey II collaboration, report the discovery of a new supernova
(at g magnitude approximately 18.2) on g, r, and i images taken with the SDSS
2.5-m telescope at Apache Point Observatory by the SDSS observing team on
Sept. 16 UT.  The new object is located at R.A. = 2h32m38s.89, Decl. =
+0o37'03".0 (equinox 2000.0).  Nothing was present at this location on a
co-added template from images acquired over the years 2000-2004 (limiting
mag g > 20).  A confirming image and spectroscopy of 2006fo was obtained by
R. Nichol and M. Smith on Sept. 17 with the European Southern Observatory
3.6-m New Technology Telescope; the spectrum shows the characteristic Si II
feature consistent with a type-Ia supernova approximately 1 week after
maximum light, although 2006fo appears to be very underluminous for a
type-Ia supernova at that epoch.  The nearby host spiral galaxy, with
centroid position R.A. = 2h32m39s.29, Decl. = +0o37'02".4, has a prior SDSS
spectrum indicating a redshift of 0.02.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2006 CBAT
2006 September 18                (CBET 624)               Daniel W. E. Green