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IAUC 7557: 2001D; 2001E; 2000fo; Poss. N IN Pup

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                                                  Circular No. 7557
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 2001D IN IC 728
     M. Modjaz and W. D. Li, University of California at Berkeley,
on behalf of LOTOSS (cf. IAUC 7514), report the discovery with the
0.8-m Katzman Automatic Imaging Telescope (KAIT) of an apparent
supernova on unfiltered images taken on Jan. 5.5 (mag about 17.6)
and 6.4 UT (mag about 17.5).  The new object is located at R.A. =
11h44m50s.97, Decl. = -1 36'18".4 (equinox 2000.0), which is 8".0
east and 12".4 south of the nucleus of IC 728.  A KAIT image of the
same field taken on 2000 Dec. 28.5 showed nothing at the position
of SN 2001D (limiting mag about 18.5).


SUPERNOVA 2001E IN NGC 3905
     Modjaz and Li also report the discovery with KAIT of another
apparent supernova on unfiltered images on Jan. 5.5 (mag about
17.6) and 6.4 UT (mag about 17.2).  SN 2001E is located at R.A. =
11h49m05s.00, Decl. = -9 44'10".9 (equinox 2000.0), which is 0".6
east and 23".2 south of the nucleus of NGC 3905.  A KAIT image of
the same field taken on 2000 Dec. 30.5 showed nothing at the
position of the new object (limiting mag about 19.0).


SUPERNOVA 2000fo IN PGC 70148
     T. Matheson, S. Jha, P. Challis, and R. Kirshner, Harvard-
Smithsonian Center for Astrophysics, report that a spectrum of SN
2000fo, obtained by M. Calkins on 2000 Dec. 23.08 UT with the F. L.
Whipple Observatory 1.5-m telescope (+ FAST spectrograph), shows it
to be a type-Ia supernova at maximum light.  The spectrum exhibits
a possibly reddened continuum, with well-defined Si II, S II, Fe
II, Mg II, and Ca II features.  Adopting the NASA/IPAC
Extragalactic Database recession velocity of 7152 km/s for the host
galaxy, the expansion velocity is 11 800 km/s for Si II (rest 635.5
nm).  The spectral-feature age of the supernova (Riess et al. 1997,
A.J. 114, 722) is 3 +/- 2 days before maximum light.


POSSIBLE NOVA IN PUPPIS
     CCD photometry of the new variable star noted on IAUC 7552 and
7556 (comparison stars from Tycho catalogue):  2000 Dec. 31.001 UT,
V = 9.24 +/- 0.05, B-V = +0.44 +/- 0.07 (D. Hanzl, Brno, Czech
Republic); 31.96, V = 9.14 +/- 0.06, B-V = +0.48 +/- 0.06 (Hanzl);
2001 Jan. 1.020, V = 9.13 (M. Lehky, Hradec Kralove, Czech Republic).

                      (C) Copyright 2001 CBAT
2001 January 6                 (7557)            Daniel W. E. Green

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