Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 7524: P/2000 SO_253; 2000em, 2000en, 2000eo, 2000ep, 2000eq

The following International Astronomical Union Circular may be linked-to from your own Web pages, but must not otherwise be redistributed (see these notes on the conditions under which circulars are made available on our WWW site).


Read IAUC 7523  SEARCH Read IAUC 7525

View IAUC 7524 in .dvi or .ps format.
IAUC number


                                                  Circular No. 7524
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)


COMET P/2000 SO_253 (LINEAR)
     An apparently asteroidal object discovered by LINEAR (MPS
20197, 21370; discovery observation below) has been found to be
cometary (highly condensed 5" coma and a 15" tail in p.a. 45 deg)
on 300-s R-band CCD exposures taken on Nov. 24.3 UT by C. W.
Hergenrother and A. E. Gleason with the Steward Observatory 1.54-m
reflector.  Additional observations and orbital elements (T = 2001
May 2.1 TT, q = 1.694 AU, i = 3.7 deg, P = 7.04 yr) are given on
MPEC 2000-W39.

     2000 UT             R.A. (2000) Decl.        m2
     Sept.24.34851    0 51 19.53   - 0 55 59.0   19.8


SUPERNOVAE 2000em, 2000en, 2000eo, 2000ep, 2000eq
     L.-G. Strolger, University of Michigan and Cerro Tololo
Interamerican Observatory (CTIO), reports the discovery by the
Nearby Galaxies Supernova Search team (cf. IAUC 7297, 7416; plus
J. C. Seguel, J. Krick, and A. Block) of several supernovae with
the Kitt Peak 0.9-m telescope (+ Mosaic camera; limiting mag R
about 21).  Search frames were compared to template frames obtained
a year or more previously.

SN      2000 UT      R.A.  (2000.0)  Decl.     R       Offset
2000em  Nov. 16    0 35 29.82   - 2 39 27.4   18.3   4".5 W, 2".5 N
2000en  Nov. 16    0 43 08.37   - 0 23 17.6   20.2   1".8 W, 2".5 N
2000eo  Nov. 16    3 09 08.17   -10 17 55.3   19.2  12".0 W, 20".9 S
2000ep  Nov. 16    9 19 49.86   - 4 43 28.2   18.7   2".8 E, 4".5 S
2000eq  Nov. 17   21 03 57.97   - 9 41 31.8   20.5   7".3 W, 7".3 N

Direct confirmation of each object was made by P. Candia using the
CTIO 0.9-m telescope on Nov. 18 and 19.  Spectra (range 400-900 nm)
were obtained by R. C. Smith and Strolger using the Mayall 4-m
telescope on Nov. 20-22.  From the spectra, N. B. Suntzeff and M.
M. Phillips identify SN 2000em as most likely a peculiar type-II
event at z = 0.019, resembling SN 1997D.  The spectra of SN 2000en
indicate that it is a type-Ia event, a few days past maximum light.
SN 2000eo in MCG -2-9-3 is a type-IIn supernova with Wolf-Rayet-
like He II and N III/C III emission, similar to SN 1998S, at z =
0.010.  SN 2000ep has spectra consistent with a normal type-II
supernova within a few weeks of maximum, at z = 0.024.  SN 2000eq
appears to be a type-Ia supernova, 2-3 weeks past maximum light.

                      (C) Copyright 2000 CBAT
2000 November 25               (7524)            Daniel W. E. Green

Read IAUC 7523  SEARCH Read IAUC 7525

View IAUC 7524 in .dvi or .ps format.


Our Web policy. Index to the CBAT/MPC/ICQ pages.


Valid HTML 4.01!