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IAUC 8207: 2003ig; 2003ih; 2003ie

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                                                  Circular No. 8207
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 2003ig IN UGC 2971
     Further to IAUC 8206, J. Graham and W. Li report the LOTOSS
discovery of an apparent supernova on unfiltered KAIT images taken
on Sept. 22.5 (at mag 18.4) and 23.5 UT (at mag 18.2).  SN 2003ig
is located at R.A. = 4h09m43s.50, Decl. = +37o00'45".8 (equinox
2000.0), which is 2".0 east and 11".0 north of the nucleus of UGC
2971.  KAIT images taken on Sept. 11.5 (limiting mag about 18) and
on Feb. 8.2 (limiting mag about 19.5) showed nothing at this
position.


SUPERNOVA 2003ih IN UGC 2836
     Further to IAUC 8200, M. Armstrong reports his discovery of an
apparent supernova (mag 18.1) on unfiltered CCD images (limiting
mag about 20-21) taken on Sept. 15.04, 21.04, and 23.16 UT;
Armstrong's position for the new object is R.A. = 3h43m57s.72, Decl.
= +39o17'43".9 (equinox 2000.0), or 4" east and 1" north of the
center of UGC 2836.  Armstrong adds that nothing is present at this
location on Palomar Sky Survey images.  W. Li notes that KAIT images
show a faint new object (mag about 19.7) on Sept. 19.5, located at
position end figures 57s.72, 43".2 (or 9".4 east and 1".0 north of
the galaxy nucleus).  Nothing is visible at this location on KAIT
images taken on Feb. 2.1 (limiting mag about 20.5) or Sept. 8.5
(limiting mag about 19.5).  SN 2001I also appeared in this galaxy
(cf. IAUC 7563).


SUPERNOVA 2003ie IN NGC 4051
     S. Benetti, H. Navasardyan, A. Pastorello, V. Botte, S. Ciroi,
G. Altavilla, N. Elias-Rosa, M. Riello, M. Turatto, L. Zampieri,
and E. Giro, Osservatorio Astronomico di Padova; and E. Cappellaro,
Osservatorio Astronomico di Capodimonte, write that inspection of a
spectrum (range 370-750 nm; resolution 2.4 nm), obtained on Sept.
22.78 UT with the Asiago 1.8-m telescope (+ AFOSC), shows that SN
2003ie (IAUC 8205) is a type-II supernova.  The spectrum is
dominated by a red continuum streaked by unusually strong P-Cyg
lines of Fe II at 492.4, 501.8, and 516.9 nm; Sc II at 552.7, 565.8,
and 624.5 nm; Na I D; and Ba II at 614.2 nm.  The mean expansion
velocity deduced from these lines is 5450 +/- 200 km/s.  H_beta and
H_alpha are also present with P-Cyg profiles and expansion
velocities of 5700 and 5500 km/s, respectively.  A broad and
asymmetric absorption centered at 629.0 nm does not have a clear
identification, but it could be due to a blend of several metal
(mostly Ti II and Ba II) lines.

                      (C) Copyright 2003 CBAT
2003 September 23              (8207)            Daniel W. E. Green

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