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IAUC 7529: 2000es, 2000et, 2000eu; 2000ev

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                                                  Circular No. 7529
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)
CBAT@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)


SUPERNOVAE 2000es, 2000et, 2000eu
     Further to IAUC 7524, L.-G. Strolger reports the discovery of
three additional supernovae by the Nearby Galaxies Supernova Search
team.  Direct confirmation of each object was made on Nov. 22 by B.
Anthony-Twarog (CTIO 0.9-m telescope) and by Strolger (Kitt Peak
0.9-m telescope).  Spectra (range 400-900 nm) were obtained by R. C.
Smith and Strolger using the Mayall 4-m telescope on Nov. 22.  From
the spectra, N. B. Suntzeff and M. M. Phillips identify SN 2000es
as a type-II event at z = 0.074.  The spectra of SN 2000et indicate
that it is a type-Ia event near maximum light, and SN 2000eu is a
type-Ia event (possibly pre-maximum).

SN      2000 UT      R.A.  (2000.0)  Decl.     R       Offset
2000es  Nov. 16    4 06 17.87   - 3 23 18.2   19.7   4".6 W, 8" N
2000et  Nov. 17    8 21 15.21   + 1 09 25.3   19.4   0".8 W, 5".2 N
2000eu  Nov. 16    9 00 13.00   - 5 35 04.2   18.7   1".6 E, 1".2 S


SUPERNOVA 2000ev IN UGC 3500
     M. Villi, Piacenza, Italy, reports the discovery of a
supernova (mag 16.5) on an unfiltered CCD image taken on Nov. 27.10
UT by Federico Manzini (Soffrago, Italy) with a 0.40-m telescope.
SN 2000ev is located 4".5 west and 19" north of the nucleus of UGC
3500 (R.A. = 6h46m.9, Decl. = +84o10', equinox 2000.0), and it also
appears on an image taken on Nov. 27.2 by R. Crippa (Tradate,
Italy); nothing is visible at this position on images taken by
Manzini on Sept. 1 or on the Digital Sky Survey.
     C. Pernechele, S. Benetti, E. Cappellaro, S. Desidera, E.
Giro, and L. Traverso, Astronomical Observatory of Padova, write:
"Inspection of a preliminarily reduced spectrum (range 350-845 nm;
resolution 0.2 nm) taken on Nov. 27 with the Asiago Ekar 1.82-m
telescope (+ AFOSC) shows a very blue continuum with superimposed
narrow Balmer emissions.  The line profiles show two components,
one unresolved and a broader one with FWHM of about 2500 km/s.  A
faint He I 587.6-nm line is also present.  This indicates that SN
2000ev is a type-IIn supernova.  A polarization observation made
with an R filter (50 min total exposure; standard polarized star 9
Gem; standard unpolarized star HD 37124) yields a polarization of
about 2.6 +/- 0.8 percent (polarization angle 60 +/- 1 deg).
Interstellar polarization was checked via field stars close to the
host galaxy but produced low results (almost comparable with the
instrumental polarization of 0.3 +/- 0.8 percent)."

                      (C) Copyright 2000 CBAT
2000 November 28               (7529)            Daniel W. E. Green

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