[IAUC] CBET 1117: 20071103 : SUPERNOVAE 2007oe-2007om

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                                                  Electronic Telegram No. 1117
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
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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