Electronic Telegram No. 1117 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://www.cfa.harvard.edu/iau/cbat.html SUPERNOVAE 2007oe-2007om Further to CBETs 611 and 1109, B. Bassett, South African Astronomical Observatory and University of Cape Town (UCT); A. Becker, University of Washington (UW); D. Bizyaev and H. Brewington, Apache Point Observatory (APO); C. Choi, Seoul National University (SNU); D. Cinabro, Wayne State University (WSU); C. D'Andrea, University of Pennsylvania (Penn); J. Dembicky, APO; D. L. DePoy, Ohio State University (OSU); B. Dilday, University of Chicago (UC); M. Doi, University of Tokyo (UoT); J. Eastman, OSU; J. Frieman, Fermilab and UC; P. Garnavich, University of Notre Dame; A. Goobar, Stockholm University; C. Hogan, UW; J. Holtzman, New Mexico State University; M. Im, SNU; S. Jha, Rutgers University; R. Kessler, UC; B. Ketzeback, APO; K. Konishi, UoT; J. Krzesinski, APO; H. Lampeitl, University of Portsmouth (UP); G. Leloudas, Dark Cosmology Centre (DCC), University of Copenhagen; D. Long, O. Malanushenko, and V. Malanushenko, APO; J. Marriner, Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab; T. Morokuma, National Astronomical Observatory of Japan; J. Mosher, Penn; R. Nichol, UP; D. Oravetz and K. Pan, APO; L. Ostman, Stockholm University; J. L. Prieto, OSU; M. Richmond, Rochester Institute of Technology; A. Riess, Space Telescope Science Institute; R. Romani, Stanford University (SU); M. Sako, Penn; D. Schneider, Pennsylvania State University; A. Simmons, APO; M. Smith, UP; S. Snedden, APO; J. Sollerman and M. Stritzinger, DCC; N. Takanashi and K. Tokita, UoT; M. F. Taylor, WSU; K. van der Heyden, UCT; S. Watters, APO; N. Yasuda, UoT; C. Wheeler, University of Texas; and C. Zheng, SU, on behalf of the Sloan Digital Sky Survey II collaboration, report the discovery of nine supernovae on g, r, and i images taken with the SDSS 2.5-m telescope at APO by the SDSS observing team. J. Marriner, D. McGinnis (Fermilab), G. Miknaitis, A. Becker, J. Frieman, J. Holtzman, and A. Riess report confirming spectroscopy of 2007ol and 2007om, obtained with the ARC 3.5-m telescope on Nov. 2 UT. M. Sako, C. D'Andrea, and N. Yasuda report confirming spectroscopy of 2007oe and 2007og, obtained on the Subaru 8-m telescope on Oct. 17. R. Romani, C. Zheng, M. Sako, C. Wheeler, D. Schneider, and R. Bender, together with University of Hopp (University of Munich) and W. Kollatschny (University of Goettingen), report confirming spectroscopy with the Hobby-Eberly Telescope on Oct. 30 and 31 for 2007of, 2007oh, and 2007oi. J. Eastman (OSU), J. Bird (OSU), and J. Prieto report confirming spectroscopy of 2007oj and 2007ok, obtained with the Hiltner 2.4-m telescope on the nights of Oct. 27 and 28. The discovery magnitudes tabulated below are all g magnitudes; spectroscopic redshifts are given in the column labelled z. Peak dates (all 2007) are approximate estimates either from fits to the early light curves or from the spectra, with a typical uncertainty of plus-or-minus several days; in cases where such estimates are either uncertain or very discrepant, they are not reported. Types marked with a question mark (?) imply that the type identification based on the spectrum is uncertain. SN Discov. R.A. (2000.0) Decl. Mag. z Estimated Type Date UT Peak Date 2007oe Sep. 22 0 24 10.34 + 0 46 30.2 21.6 -- Oct. 13 IIn 2007of Oct. 6 21 04 56.27 + 0 03 39.6 22.8 0.40 Oct. 9 Ia? 2007og Oct. 8 2 48 20.54 - 0 58 10.7 21.4 -- Oct. 13 IIP 2007oh Oct. 10 20 52 36.92 - 0 27 14.3 22.9 0.42 Oct. 12 Ia 2007oi Oct. 13 0 21 17.87 + 1 04 28.3 23.1 0.30 Oct. 21 Ia? 2007oj Oct. 15 23 51 38.01 + 0 16 47.4 21.6 0.12 Oct. 25 Ia 2007ok Oct. 17 2 28 24.27 + 0 11 04.8 21.3 0.17 Oct. 31 Ia 2007ol Oct. 29 1 37 23.70 - 0 18 43.2 19.4 0.06 Nov. 8 Ia 2007om Oct. 30 23 54 20.69 - 0 55 03.4 19.7 0.11 Nov. 9 Ia NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2007 CBAT 2007 November 3 (CBET 1117) Daniel W. E. Green