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IAUC 7406: 2000bs; 2000bt, 2000bu, 2000bv, 2000bw, 2000bx, 2000by, 2000bz

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                                                  Circular No. 7406
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
BMARSDEN@CFA.HARVARD.EDU or DGREEN@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7244/7440/7444 (for emergency use only)


SUPERNOVA 2000bs IN UGC 10710
     M. Papenkova and W. D. Li, University of California at
Berkeley, on behalf of the Lick Observatory Supernova Search (cf.
IAUC 6627, 7126), report the discovery of an apparent supernova
(mag about 17.7) on unfiltered images taken on Apr. 19.5 and 20.3
UT with the 0.8-m Katzman Automatic Imaging Telescope (KAIT).  SN
2000bs is located at R.A. = 17h06m54s.67, Decl. = +43o06'41".7
(equinox 2000.0), which is 23".9 east and 38".0 south of the
nucleus of UGC 10710.  An unfiltered image taken on Apr. 8.5 showed
nothing at the position of the new object (limiting mag about 19.0).


SUPERNOVAE 2000bt, 2000bu, 2000bv, 2000bw, 2000bx, 2000by, 2000bz
     D. Hardin, LPNHE, Paris, reports for N. Walton, on behalf of
the EROS collaboration and the European Supernova Cosmology
Consortium (cf. IAUC 7258, plus A. Amadon, Service de Physique des
Particules, Saclay; D. Batcheldor, University of Hertfordshire; G.
Folatelli, G. Garavini, and S. Nobili, University of Stockholm; and
A. Mourao and M. J. Cruz, Instituto Superior Tecnico, Lisbon), the
discovery of seven supernovae in the course of the automated
supernova search with the 1-m Marly telescope at the European
Southern Observatory (ESO).  All were found by subtraction of CCD
images from reference images taken in early March (limiting mag
about 21.5), and each was within 2" of its host galaxy's center;
most were discovered near maximum light, but SN 2000bt was
discovered about 3 weeks past maximum.  The supernovae were
confirmed via images taken 1 or 2 days after discovery at the Marly
telescope, except SN 2000bz (which was confirmed at the ESO 3.6-m
telescope).  Confirming spectroscopy was obtained at the 4.2-m
William Herschel Telescope during Apr. 7-9 and at the ESO 3.6-m
telescope during Apr. 9-11.  Finding charts can be found at
http://supernovae.in2p3.fr/Intz/INT200004/sn.html.

SN       2000 UT     R.A. (2000.0) Decl.       V      z    Type
2000bt   Mar. 26   10 16 18.06  - 5 44 47.3   19.6   0.04   Ia
2000bu   Mar. 31   11 27 11.45  - 6 23 14.6   19.4   0.05   II?
2000bv   Apr.  1   12 59 28.70  -12 20 07.6   20.6   0.12   II?
2000bw   Apr.  4   11 09 49.85  - 4 24 46.4   20.5   0.12   II?
2000bx   Apr.  6   13 48 55.53  - 6 18 35.9   19.2   0.09   Ia
2000by   Apr.  7   11 39 54.91  - 4 22 16.4   19.3   0.10   Ia
2000bz   Apr.  8   14 15 02.66  - 6 17 16.0   21.2   0.26   Ia

                      (C) Copyright 2000 CBAT
2000 April 20                  (7406)            Daniel W. E. Green

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