[IAUC] CBET 1007: 20070719 : SUPERNOVAE 2007fu, 2007fv, 2007fw, 2007fx

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                                                  Electronic Telegram No. 1007
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 2007fu, 2007fv, 2007fw, 2007fx
     The "Nearby Supernova Factory" collaboration (P. Antilogus, R. Pain, R.
Pereira, 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; C. Buton, Y. Copin, E. Gangler,
and G. Smadja, Institut de Physique Nucleaire de Lyon; D. Birchall,
Institute for Astronomy, University of Hawaii, Hilo; and J. Holtzman, New
Mexico State University, Las Cruces) reports the discovery of four
supernovae in images obtained during July 13-14 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 each supernova.  R-band discovery
magnitudes and astrometry are derived from comparison with the USNO-B1.0
catalogue.  The following table summarizes the discovery information,
including redshifts (z).

SN       2007 UT       R.A. (2000.0) Decl.      Mag.    z      Type
2007fu   July 13.3   20 30 28.88  -13 15 34.9   19.0   0.06    Ia
2007fv   July 13.4   23 03 51.58  -21 08 52.2   19.7   0.03    II
2007fw   July 14.2   15 21 09.14  + 2 26 26.3   19.5   0.05    IIn
2007fx   July 14.3   20 55 57.48  - 5 41 54.9   18.5   0.06    Ia

The spectrograms for 2007fu (three weeks past maximum) and 2007fv were
obtained on July 14.4-14.5 UT.  The spectrograms for 2007fx (1-2 weeks
past maximum) and 2007fw were obtained on July 17.5 and 17.3.  SN
2007fw was not present in images obtained on July 3 (no limiting
magnitude provided).


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                         (C) Copyright 2007 CBAT
2007 July 19                     (CBET 1007)              Daniel W. E. Green