[IAUC] CBET 1050: 20070904 : SUPERNOVAE 2007hk, 2007hl, 2007hm, 2007hn, 2007ho, 2007hp

Mar Sep 4 02:00:50 ART 2007

                                                  Electronic Telegram No. 1050
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS en CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT en CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVAE 2007hk, 2007hl, 2007hm, 2007hn, 2007ho, 2007hp
     The "Nearby Supernova Factory" collaboration (C. Buton, Y. Copin, E.
Gangler, G. Smadja, and C. Tao, Institut de Physique Nucleaire de Lyon; P.
Antilogus, S. Bailey, R. Pain, R. Pereira, and C. Wu, Laboratoire de
Physique Nucleaire et de Haute Energies de Paris; G. Aldering, C. Aragon,
S. Bongard, M. Childress, S. Loken, P. Nugent, S. Perlmutter, K. Runge,
R. C. Thomas, and B. A. Weaver, Lawrence Berkeley National Laboratory,
Berkeley, CA; 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. Cough and J. Holtzman, New Mexico State University, Las Cruces)
reports the discovery of six supernovae in images obtained using the
QUEST-II camera on the Palomar 1.2-m Schmidt telescope, operated by the
Palomar-QUEST Consortium.  Spectra (range 320-1000 nm) were obtained on
Sept. 2.3-2.5 UT with the SuperNova Integral Field Spectrograph on the
University of Hawaii 2.2-m telescope, showing 2007hk to be 3 weeks past
maximum, 2007hn to be around maximum, 2007ho to be one month past maximum,
and 2007hp to be a few days past maximum.  The tabulated 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
2007hk   Aug. 31.2   20 47 57.16  - 5 24 25.9   18.4   0.04    Ia
2007hl   Aug. 31.2   20 50 07.76  - 1 58 36.4   19.5   0.06    Ib/c
2007hm   Aug. 31.2   20 57 55.47  - 7 23 24.1   18.3   0.02    II
2007hn   Aug. 31.2   21 02 46.85  - 4 05 25.2   18.6   0.03    Ib/c
2007ho   Aug. 31.2   21 22 50.97  -21 08 42.5   19.5   0.07    Ia
2007hp   Sept. 1.3    0 38 01.48  -14 57 48.3   19.5   0.11    Ia


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2007 CBAT
2007 September 4                 (CBET 1050)              Daniel W. E. Green