IAU Central Bureau for Astronomical Telegrams

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IAUC 8214: 2003im, 2003in, 2003io, 2003ip; 2003ij, 2003ik

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                                                  Circular No. 8214
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 2003im, 2003in, 2003io, 2003ip
     Further to IAUC 8207, W. Li reports the LOTOSS discovery of
three apparent supernovae (2003im, 2003in, 2003ip) on unfiltered
KAIT images.  Also, T. Puckett, Mountain Town, GA; and B. Kerns,
Stanton, ND, report the discovery of an apparent supernova (2003io)
on an unfiltered CCD frame (limiting mag 19.3) taken with the
Puckett Observatory 0.35-m automated supernova patrol telescope,
the new object being confirmed on unfiltered CCD frames taken by M.
Marcus on Oct. 2.16 UT.

SN       2003 UT       R.A.  (2000.0)  Decl.   Mag.     Offset
2003im   Sept. 30.4    0 44 59.28  - 8 53 11.5  17.4  1".6 E, 11".6 N
2003in   Sept. 30.5    3 35 33.31  + 5 03 52.7  17.8  2".9 E, 8".5 S
2003io   Sept. 30.27   2 17 26.87  +14 34 36.3  17.1  11".3 E, 12".5 S
2003ip   Oct.   1.3    0 33 16.76  + 7 54 19.5  16.5  20".3 E, 1".2 N

Puckett adds that SN 2003io in UGC 1761 does not appear on
unfiltered images taken by himself on 1999 Oct. 17 or 2000 Jan. 2
and 7 (limiting mag about 20.0).  Additional approximate LOTOSS
magnitudes (K = KAIT image; T = Tenagra II image):  SN 2003im in a
galaxy within Abell cluster 85, 2002 Dec. 28.1, [19.0 (T); Oct. 1.4,
17.3 (K).  SN 2003in in IC 1956, Jan. 23.1, [19.5 (T); Oct. 1.5,
17.7 (K).  SN 2003ip in UGC 327, 2002 Dec. 29.1, [19 (T); 2003 Oct.
2.3, 16.5 (K).
     A. V. Filippenko and R. J. Foley, University of California,
Berkeley, report that inspection of CCD spectra (range 310-1000 nm),
obtained on Oct. 2 UT with the Shane 3-m telescope at Lick
Observatory, reveal that SN 2003im and SN 2003in are of type Ia,
roughly 1 month and 2-3 weeks past maximum brightness, respectively.
SN 2003ip is a supernova of type II, within a few weeks after the
explosion; hydrogen Balmer lines with P-Cyg profiles are superposed
on a relatively blue continuum, but the emission component of
H_alpha substantially dominates over the absorption component.
(The offset above for SN 2003in is a correction by Filippenko to
that given on CBET 45.)


SUPERNOVAE 2003ij AND 2003ik
     Filippenko and Foley add that inspection of CCD spectra,
obtained as above on Oct. 2 UT, reveal that SN 2003ij (IAUC 8210)
and SN 2003ik (IAUC 8212) are also of type Ia, within a few days of
maximum brightness.

                      (C) Copyright 2003 CBAT
2003 October 2                 (8214)            Daniel W. E. Green

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