[IAUC] CBET 1013: 20070730 : SUPERNOVAE 2007gf AND 2007gg

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                                                  Electronic Telegram No. 1013
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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SUPERNOVAE 2007gf AND 2007gg
     The "Nearby Supernova Factory" collaboration (C. Buton, Y. Copin,
E. Gangler, and G. Smadja, Institut de Physique Nucleaire de Lyon; P.
Antilogus, R. Pain, R. Pereira, and C. Wu, Laboratoire de Physique
Nucleaire et de Haute Energies de Paris; G. Aldering, C. Aragon, S.
Bailey, S. Bongard, M. Childress, S. Loken, P. Nugent, S. Perlmutter,
K. Runge, R. C. Thomas, and B. A. Weaver, Lawrence Berkeley National
Laboratory, Berkeley; C. Baltay, A. Bauer, D. Rabinowitz, and R. Scalzo,
Yale University; G. Rigaudier and E. Pecontal, Centre de Recherche
Astronomique de Lyon; D. Birchall, Institute for Astronomy, University
of Hawaii, Hilo; and J. Holtzman, New Mexico State University, Las Cruces)
reports the discovery of two supernovae in images obtained during July
26-28 UT using the QUEST-II camera on the Palomar Oschin 1.2-m Schmidt
telescope, operated by the Palomar-QUEST Consortium.  Spectra (range
320-1000 nm) obtained with the SuperNova Integral Field Spectrograph on
the University of Hawaii 2.2-m telescope were used to classify the
supernovae.  A spectrum of 2007gf taken on July 29.4 showed it to be
around maximum, and a spectrum of 2007gg on July 30.5 showed it to be
one week past maximum.  The R-band discovery magnitudes and astrometry
below were derived from comparison with the USNO-B1.0 catalogue.

SN       2007 UT       R.A. (2000.0) Decl.      Mag.    z      Type
2007gf   July 26.4   23 17 48.71  +22 59 07.1   19.9   0.14    Ia
2007gg   July 28.5    2 52 22.68  +16 31 40.3   19.1   0.04    Ib/c


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                         (C) Copyright 2007 CBAT
2007 July 30                     (CBET 1013)              Daniel W. E. Green