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%  A paper on PASJ 48-2, L1-6, 1996 (April 25 issue)
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{\Large\bf ASCA Observation of a Possible X-Ray Counterpart\\
              of the 1992 May 1 Gamma-Ray Burst}\\

Toshio Murakami,  Ryo Shibata, and Yasusi Ogasaka\\ 
{\it The Institute of Space and Astronautical Science,
3-1-1 Yoshinodai,\\ Sagamihara, Kanagawa 229}\\

    Atsumasa Yoshida\\
{\it The Institute of Physical and Chemical Research, 2-1 Hirosawa, 
Wako, Saitama 351-01}\\

    Kevin Hurley and Peng  Li\\
{\it University of California, Space Sciences Laboratory, Berkeley,
      CA 94720-7450, USA}\\
              and\\
   Chryssa Kouveliotou and  Gerald J. Fishman \\
{\it NASA/MSFC, Huntsville, AL 35812, USA}\\            
 (Received 1995 November 14 ; accepted  1995 December 18)
\date{}
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\begin{abstract}
 A probable X-ray counterpart of the 1992 May 1 gamma-ray burst was
observed with ASCA. This burst was first observed with the 3rd
interplanetary network, which consisted of BATSE, Ulysses, and PVO,
and was localized to a small error box. Then, 18 days after the burst,
ROSAT discovered a weak X-ray source in the error box, and later ROSAT
HRI and PSPC observations determined the spectrum and refined the
position.  ASCA observed this source on 1995 April 10. Its 0.5--10.0
keV spectrum appears to be hard, and is heavily absorbed at low
energies.  The amount of absorption is consistent with the galactic
hydrogen column density in this direction. This suggests that the
X-ray source is quite distant, and might not be a field star or a
supernova remnant in the galactic disk. Recently, IR observations at KECK
found a galaxy, in the error, which seems to be consistent with the
ASCA results.\\

{\bf Key words:}Gamma rays-X-rays: spectra-Stars: individual(GRB 920501)
-Galaxies: X-rays 
\end{abstract}
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