Supernova 2006fo
Abstract
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.
- Publication:
-
Central Bureau Electronic Telegrams
- Pub Date:
- September 2006
- Bibcode:
- 2006CBET..624....1B