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IAUC 7800: 2002J; 2002C; 2002E

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                                                  Circular No. 7800
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)


SUPERNOVA 2002J IN NGC 3464
     D. Weisz and W. D. Li, University of California at Berkeley,
report the LOTOSS (cf. IAUC 7514) discovery of an apparent
supernova on unfiltered CCD images taken with the KAIT on Jan. 21.4
(mag about 16.8) and 22.4 UT (mag about 16.6).  SN 2002J is located
at R.A. = 10h54m38s.36, Decl. = -21o03'53".6 (equinox 2000.0),
which is 23".5 west and 6".1 north of the nucleus of NGC 3464.
KAIT images of the same field on Jan. 9.4 (limiting mag about 19.0)
and 15.4 (limiting mag about 18.0) showed nothing at this position.


SUPERNOVA 2002C IN IC 3376
     A. V. Filippenko and R. Chornock, University of California,
Berkeley, report that inspection of CCD spectra (range 330-1000 nm)
obtained on Jan. 17 UT with the Keck-I telescope reveals that SN
2002C (IAUC 7793) is of type II, shortly after the explosion.  The
continuum is quite blue, and the Balmer lines (as well as He I
587.6-nm) have P-Cyg profiles.
     T. Matheson, S. Jha, P. Challis, and R. Kirshner, Harvard-
Smithsonian Center for Astrophysics, report that a spectrum (range
370-750 nm) of SN 2002C, obtained by P. Berlind on Jan. 19.49 UT
with the Mt. Hopkins 1.5-m telescope (+ FAST spectrograph), shows
it to be a type-II supernova.  P-Cyg lines of hydrogen are apparent
on a blue continuum.  Adopting the NASA/IPAC Extragalactic Database
(NED) recession velocity of 7165 km/s for the host galaxy, the
expansion velocity derived from the minimum of the H-beta line is
10 400 km/s.


SUPERNOVA 2002E IN NGC 4129
     Matheson et al. also write that a spectrum of SN 2002E (cf.
IAUC 7797), obtained by Berlind as above on Jan. 19.51 UT, shows it
to be a type-II supernova past maximum: "Adopting the NED recession
velocity of 1174 km/s for the host galaxy, the expansion velocity
derived from the minimum of the H-beta line is 1300 km/s.  The
spectrum shows a relatively flat continuum (strongly contaminated
by light from the host galaxy) with P-Cyg lines of hydrogen, but
with weak absorption troughs.  In addition, lines of [Ca II] (729.1,
732.4 nm) are present, indicating the beginning of the transition
to the nebular phase.  Other indicators of the nebular phase, such
as the forbidden lines of oxygen, are not obviously apparent."

                      (C) Copyright 2002 CBAT
2002 January 22                (7800)            Daniel W. E. Green

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