2005CBET..254....1B

Further to CBET 229 and 247, J. Barentine, Apache Point Observatory (APO); B. Bassett, University of Portsmouth (UP); A. Becker, University of Washington; R. Bender, University of Munich (UM); M. Bremer, University of Bristol; H. Brewington, APO; F. DeJongh, Fermilab; J. Dembicky, APO; D. L. DePoy, Ohio State University (OSU); B. Dilday, University of Chicago (UC); M. Doi, University of Tokyo; A. Edge, University of Durham; E. Elson, South African Astronomical Observatory (SAAO); J. Frieman, Fermilab and UC; P. Garnavich, University of Notre Dame; A. Goobar, Stockholm University; M. Harvanek, APO; T. Gueth and J. Holtzman, New Mexico State University; U. Hopp, UM; W. Kollatschny, Goettingen University; J. Krzesinski, APO; D. Lamenti, San Francisco State University; H. Lampeitl, Fermilab; R. Kessler, UC; B. Ketzeback, APO; K. Konishi, University of Tokyo; D. Long, APO; J. Marriner, Fermilab; J. L. Marshall, OSU; R. McMillan, APO; J. Mendez, University of Barcelona (UB); G. Miknaitis, Fermilab; R. Nichol, UP; K. Pan, APO; J. L. Prieto, OSU; M. Richmond, Rochester Institute of Technology; A. Riess, Space Telescope Science Institute; R. Romani, Stanford University (SU); K. Romer, University of Sussex; P. Ruiz-Lapuente, UB; M. Sako, SU; D. Schneider, Pennsylvania State University; M. Smith, UP; S. Snedden, APO; M. Subbarao, UC and Adler Planetarium; N. Takanashi, University of Tokyo; K. van der Heyden, SAAO; C. Wheeler, University of Texas; and N. Yasuda, University of Tokyo, on behalf of the Sloan Digital Sky Survey II collaboration, report the discovery of eleven supernovae on multiple g, r, and i images taken with the SDSS 2.5-m telescope at Apache Point Observatory by the SDSS observing team. Spectroscopy was obtained with the Hobby Eberly Telescope and the ARC 3.5-m telescope, showing ten to be of type Ia and one (2005gt) to be a probable type-Ia event. The discovery magnitudes tabulated below are all g magnitudes unless followed by an asterisk (in which case they are r magnitudes due to non-detection in g on the discovery date). Spectroscopic redshifts are given in the column labelled z. Peak magnitudes and dates (all 2005) are estimated from fits to the multi-band light curves. A full listing of confirmed supernovae from the SDSS Supernova Survey is available at http://sdssdp47.fnal.gov/sdsssn/snlist.php. SN Discov. R.A. (2000.0) Decl. Mag. z Estimated Peak Date Date Mag. 2005go Sep. 14 1 10 49.19 + 1 00 28.4 22.3 0.26 Sep. 23 21.5 2005gp Sep. 14 3 41 59.29 - 0 46 57.6 22.5 0.13 Sep. 24 20.2 2005gq Sep. 22 3 33 48.97 + 0 42 33.6 22.4* 0.37 Sep. 22 22.6 2005gr Sep. 22 3 36 37.49 + 1 04 45.0 21.3 0.24 Sep. 30 21.0 2005gs Sep. 22 22 13 10.25 + 1 03 02.0 22.1 0.27 Sep. 30 21.6 2005gt Sep. 25 2 04 03.84 - 0 21 57.0 22.0 0.28 Sep. 21 22.0 2005gu Sep. 26 0 48 57.05 - 0 54 20.6 22.0 0.33 Sep. 18 21.8 2005gv Sep. 26 2 33 54.13 + 0 16 50.6 22.3 0.36 Sep. 27 22.2 2005gw Sep. 26 23 37 59.60 + 0 38 31.6 21.6 0.28 Sep. 27 21.6 2005gx Sep. 26 23 59 32.26 + 0 44 13.8 22.6 0.13 Oct. 8 20.3 2005gy Sep. 28 1 26 06.80 + 0 40 36.8 22.9 0.33 Oct. 7 22.4