[IAUC] CBET 941: 20070424 : SUPERNOVAE 2007bo-2007bz
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Electronic Telegram No. 941
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 2007bo-2007bz
The "Nearby Supernova Factory" collaboration (P. Antilogus, J. Li,
R. Pain, R. Pereira, and C. Wu, Laboratoire de Physique Nucleaire et de
Haute Energies de Paris; C. Buton, Y. Copin, E. Gangler, and G. Smadja,
Institut de Physique Nucleaire de Lyon; 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; E. Pecontal and G. Rigaudier, Centre de Recherche
Astronomique de Lyon; R. Kessler, Kavli Institute for Cosmological
Physics, Chicago; and C. Baltay, A. Bauer, N. Ellman, D. Herrera, D.
Rabinowitz, and R. Scalzo, Yale University) reports the discovery of
twelve new supernovae in images obtained during Mar. 26-Apr. 22 UT with
the QUEST-II camera on the Palomar Oschin 1.2-m Schmidt telescope,
operated by the Palomar-QUEST Consortium (cf. CBETs 263, 768, 929).
Discovery positions and R-band magnitudes tabulated below were derived
from reductions with the USNO-A2.0 catalogue. A subsequent spectrum of
each target (range 320-1000 nm), obtained with the SuperNova Integral
Field Spectrograph (SNIFS) on the University of Hawaii 2.2-m telescope,
was used for classification, and redshifts (z) are also listed below.
SN 2007 UT R.A. (2000.0) Decl. Mag. z Type
2007bo Mar. 26.2 10 44 28.93 +23 50 10.7 19.6 0.04 II
2007bp Mar. 26.4 9 24 00.55 + 5 12 25.0 15.6 0.03 II
2007bq Apr. 3.5 15 47 04.71 - 6 43 38.1 18.8 0.03 II
2007br Apr. 4.3 11 15 39.93 - 4 22 47.8 19.5 0.05 Ib
2007bs Apr. 8.5 8 06 46.58 +22 24 46.0 19.8 0.14 IIn
2007bt Apr. 17.5 14 27 47.73 +12 48 47.1 15.6 0.04 IIn
2007bu Apr. 18.2 11 47 23.91 + 6 38 46.8 19.3 0.03 II
2007bv Apr. 18.4 15 34 10.87 + 7 05 48.7 19.6 0.05 II
2007bw Apr. 18.5 17 11 01.99 +24 30 36.4 17.3 0.14 IIn
2007bx Apr. 19.3 11 02 41.52 - 1 38 31.5 18.6 0.02 II
2007by Apr. 22.4 15 44 44.08 + 4 28 13.1 19.1 0.04 II
2007bz Apr. 22.4 12 56 53.77 +22 22 22.1 16.7 ? ?
SN 2007bp appears close to the galaxy MCG +01-24-19. SN 2007bz, which
is located in IC 3918 (redshift 0.022, Van Driel et al. 2000, A.Ap.
Suppl. 144, 463; via NED) was not present to mag 20.5 on images from
Apr. 4.5 UT, and it was confirmed on an image obtained on Apr. 23.5
with the SNIFS.
NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
superseded by text appearing later in the printed IAU Circulars.
(C) Copyright 2007 CBAT
2007 April 24 (CBET 941) Daniel W. E. Green
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