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IAUC 5913: X-RAY N IN Oph; OJ 287 AND 3C 279; Corrs

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IAUC number 

                                                  Circular No. 5913
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Telephone 617-495-7244/7440/7444 (for emergency use only)
TWX 710-320-6842 ASTROGRAM CAM     EASYLINK 62794505
MARSDEN@CFA or GREEN@CFA (.SPAN, .BITNET or .HARVARD.EDU)


X-RAY NOVA IN OPHIUCHUS
     B. A. Harmon, Marshall Space Flight Center, NASA; and W. S.
Paciesas, University of Alabama at Huntsville, report for the
Compton Observatory BATSE Team:  "The hard x-ray transient GRO
J1719-24 (= GRS 1716-249), which had been decreasing in intensity
at about 0.3 percent per day from a peak of 1.4 Crab (20-100 keV)
on Sept. 30 (IAUC 5900), began dropping much more rapidly since
about Dec. 9.  The intensities in the band 20-100 keV for Dec. 10,
13, and 15 were 1.1 (+/- 10 percent), 0.9 (+/- 15 percent), and 0.4
(+/- 20 percent) Crab, respectively.  On Dec. 16-18, the source
dropped below the BATSE 3-sigma 1-day detection limit of 0.1 Crab.
Preliminary indications showed no marked change in spectral shape
during the intensity decrease.  Observations in other wavelength
bands are strongly encouraged."


OJ 287 AND 3C 279
     E. I. Robson, Joint Astronomy Centre, Hilo; and J. A. Stevens
report:  "James Clerk Maxwell Telescope monitoring of 3C 279 shows
that the optical flare noted on IAUC 5911 appeared at 1.1 mm between
Nov. 28 and Dec. 5.  The flux rose by only 10 percent, with a
further 10-percent rise by Dec. 23.  UKIRT service observations of
OJ 287 at 2.2 microns show an increase of more than a factor of 3
between 1993 January and November.  JCMT data show a corresponding
rise of about a factor of 2 at 0.8 mm and less at 1.1 mm, but
between Nov. 21 and Dec. 23, OJ 287 remained steady at millimeter to
submillimeter wavelengths."


CORRIGENDA
     On IAUC 4983, 'Comet Austin (1989c1)', lines 7-10, the
exponents for r should all be negative values.
     On IAUC 5666, 'Nova Puppis 1991',  for  Nov. 21.62,  read
Nov. 21.62 UT,
     The galaxy UGC 1071 in which SN 1993ae lies (IAUC 5888) is
also IC 126, a designation that should take precedence.
     On IAUC 5901, 'GRO J0422+32', line 7,  for  [Nov.] 25.72,
read  [Nov.] 25.22,
     On IAUC 5909, 'OJ 287', line 11,  for  14.660, [15.4
read  15.660, [14.9


1993 December 27               (5913)            Daniel W. E. Green

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