Central Bureau for Astronomical Telegrams
IAUC 8031: 2002jo; 2002jp; 2002jj, 2002jm
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Circular No. 8031
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 2002jo IN NGC 5708
Further to IAUC 7373, A. Dimai reports the discovery of an
apparent supernova (mag 16.4) on unfiltered CCD images taken on
Dec. 11.20 and 11.23 UT, confirmed at mag 16.3 on an image taken on
Dec. 12.21. The new object is located at R.A. = 14h38m16s.42, Decl.
= +40o27'14".0 (equinox 2000.0), which is 1" east and 10" south of
the nucleus of NGC 5708. SN 2002jo is not present in Dimai's CCD
images from Sept. 5 (limiting mag 18.5) or on Palomar Sky Survey
red and blue digitized plates.
R. J. Foley, M. Papenkova, R. Chornock, W. D. Li, S. Jha, and
A. V. Filippenko, University of California, Berkeley, report that
spectra (range 310-1000 nm), obtained on Dec. 12 UT with the Shane
3-m telescope at Lick Observatory, show this to be a supernova of
type Ia, about 3 weeks past maximum light. The continuum is redder
than that of SN 1994D at a similar epoch, possibly indicating that
the object is significantly extinguished by dust.
SUPERNOVA 2002jp IN NGC 3313
Further to IAUC 8030, M. Ganeshalingam and W. Li report the
discovery by LOTOSS of an apparent supernova on unfiltered images,
with the following photometry available (via KAIT, except Dec. 10.5
UT by M. Schwartz with the Tenagra II telescope): May 14.2, [18.5;
Nov. 23.5, 16.9; Dec. 7.5, 16.7; 10.5, 17.1:; 11.5, 17.2. SN
2002jp is located at R.A. = 10h37m26s.50, Decl. = -25o21'35".2
(equinox 2000.0), which is 13".6 east and 145".9 south of NGC 3313.
Foley et al. report that spectra, taken as above, show that SN
2002jp is a type-Ic supernova, about 2 weeks past maximum light.
SUPERNOVAE 2002jj AND 2002jm
Foley et al. also write that inspection of CCD spectra,
obtained as above on Dec. 12 UT, reveals that SN 2002jj (IAUC 8026)
is a supernova of type Ic, resembling SN 1994I (Filippenko et al.
1995, Ap.J. 450, L11) one month past maximum brightness. The
spectrum of SN 2002jm (IAUC 8030) is similar to that of the
subluminous type-Ia SN 1991bg (Filippenko et al. 1992, A.J. 104,
1543) at about 3 weeks past maximum light, except that SN 2002jm
lacks the peculiar Na I D absorption seen in SN 1991bg.
(C) Copyright 2002 CBAT
2002 December 12 (8031) Daniel W. E. Green
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