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IAUC 8088: S/2003 J 8; 2003bn; 2003bg; IGR J19140+098

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                                                  Circular No. 8088
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)


S/2003 J 8
     Further to IAUC 8087, S. S. Sheppard reports another satellite
of Jupiter found on CCD images taken at Mauna Kea during Feb. 8-Mar.
5 (MPEC 2003-E15).  After computing the preliminary orbit, B. G.
Marsden made a linkage to Mauna Kea observations in Jan. 2002, then
finding e = 0.26, i = 153 deg, P = 781 days, H = 15.9 (MPEC 2003-E24).


SUPERNOVA 2003bn
     Further to IAUC 8084, W. M. Wood-Vasey, G. Aldering, and P.
Nugent report the discovery of an apparent supernova (mag 16.7) on
unfiltered NEAT images taken with the Haleakala 1.2-m telescope on
2003 Feb. 27.48 and 28.38 UT.  The new object is located at R.A. =
10h02m35s.51, Decl. = -21o10'54".5 (equinox 2000.0), which is 3".2
east and 1".0 south of the center of the apparent host galaxy.
Additional magnitudes from NEAT images:  Feb. 21.0, [21.0; 22.33,
20.2.  J. Mulchaey and M. Phillips, Las Campanas Observatory, found
SN 2003bn at V about 16.7 on Mar. 6.13.


SUPERNOVA 2003bg IN MCG -05-10-15
     M. Hamuy, M. Phillips, and J. Thomas-Osip, Carnegie
Observatories, write:  "An optical spectrum of SN 2003bg, obtained
on Mar. 4 with the Las Campanas Observatory 2.5-m telescope,
indicates the presence of strong, broad H_alpha emission with a P-
Cyg absorption component with an expansion velocity of -17110 km/s
at its minimum.  P-Cyg absorption minima apparently corresponding
to H_beta and H_gamma are also present at expansion velocities of
-14600 and -13650 km/s.  Although the overall appearance of the
spectrum of SN 2003bg is similar to that of other broad-lined
type-Ic events, the presence of strong hydrogen features
distinguishes it."


IGR J19140+098
     D. C. Hannikainen, University of Helsinki Observatory; J.
Rodriguez, CEA, Service d'Astrophysique, Saclay, and Integral
Science Data Center (ISDC), Versoix; and K. Pottschmidt, Max Planck
Institut fuer Extraterrestrische Physik, Garching, and ISDC, report
the detection by INTEGRAL (+ IBIS/ISGRI) on Mar. 6.456 UT (during
an observation of GRS 1915+105), of a new transient at R.A. =
19h13m55s, Decl. = +9o51'.6 (equinox 2000.0; uncertainty 1').  The
source, which varied significantly during a span of 2000 s, had a
flux in the band 15-40 keV of 50-100 mCrab.

                      (C) Copyright 2003 CBAT
2003 March 6                   (8088)            Daniel W. E. Green

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