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IAUC 7082: 1998fc, 1998fd; 1998eu; RX J0052.1-7319

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                                                  Circular No. 7082
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)
BMARSDEN@CFA.HARVARD.EDU or DGREEN@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7244/7440/7444 (for emergency use only)


SUPERNOVAE 1998fc AND 1998fd IN ANONYMOUS GALAXIES
     A. Gal-Yam and D. Maoz, Tel Aviv University, report for the
Wise Observatory Optical Transients Search (cf. IAUC 7055) their
discovery of two apparent supernovae on unfiltered CCD images taken
with the Wise Observatory 1-m telescope on 1998 Dec. 20 and 24.  SN
1998fc, discovered at R = 20.5 on Dec. 20, is located at R.A. =
2h59m12s.61, Decl. = +3o29'39".0 (equinox 2000.0), which is 21"
west and 16.7" south of the nucleus of the giant galaxy at the
center of the galaxy cluster Abell 403 (z = 0.103).  Summation of
several previous images of this field does not reveal any galaxy
that is a more plausible host for SN 1998fc.  SN 1998fc was
invisible in images obtained on 1998 Nov. 14 (limiting mag R about
22.5) but was confirmed (R about 21.2) on CCD images taken by J.
Dan and R. Beeri on 1999 Jan. 7 and 9 with the same telescope.  SN
1998fd, discovered at R = 21.3 on 1998 Dec. 24, is located at R.A.
= 1h19m18s.06, Decl. = +15o55'24".1, which is 5".8 east and 2".8
north of the host galaxy center.  SN 1998fd was also confirmed on
images taken on 1999 Jan. 9 by Beeri and shows some fading.  SN
1998fd was invisible in images obtained on 1998 Nov. 15 (limiting
mag R about 22.5).  Finding charts can be obtained via
ftp://wise-obs.tau.ac.il/pub/avishay/sn33.fits (SN 1998fc) and
/sn32.fits (SN 1998fd).


SUPERNOVA 1998eu IN ANONYMOUS GALAXY
     Gal-Yam and Maoz also write:  "A spectrum of SN 1998eu (IAUC
7055) was obtained by R. A. Stathakis, R. D. Cannon, and D. M.
James, Anglo-Australian Observatory, on 1998 Dec. 11.  The spectrum
(range 350-625 nm), obtained with the 4-m Anglo-Australian
Telescope (+ RGO spectrograph and 300B grating), shows narrow
emission lines of [O II] 372.7-nm and [O III] 500.7 nm, setting the
galaxy redshift at z = 0.181, and consistent with it being a member
of the galaxy cluster Abell 125 (z = 1.88).  Four broad (FWHM
10.0-nm) emission peaks at rest wavelengths of 395.0, 427.0, 459.5,
and 493.0 nm (assuming the above redshift) are detected.  The
spectrum is similar to that of a type-Ia supernova that is about 4
weeks old, consistent with the discovery date of SN 1998eu (Nov.
14)."


RX J0052.1-7319
     P. Kahabka, University of Amsterdam, reports an improved
position for the 15.3-s x-ray pulsar in the Small Magellanic Cloud
(cf. IAUC 7081), derived from a ROSAT HRI observation on 1995 May
18-June 3:  R.A. = 0h52m15s.5, Decl. = -73o19'14" (equinox 2000.0;
+/- 4" at 90 percent confidence).

                      (C) Copyright 1999 CBAT
1999 January 11                (7082)            Daniel W. E. Green

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