Astron. Astrophys. Suppl. Ser. 138, 441-442
J. Greiner1 - W. Voges2 - T. Boller2 - D. Hartmann3
Send offprint request: J. Greiner, email@example.com
1 - Astrophysical Institute Potsdam, An der Sternwarte 16, 14482 Potsdam, Germany
2 - MPI for extraterrestrial Physics, 85740 Garching, Germany
3 - Clemson Univ., Dept. of Phys and Astronomy, Clemson, SC 29634-1911, U.S.A.
Received December 22, 1998; accepted May 10, 1999
We report on the status of our search for X-ray
afterglows of gamma-ray bursts
(GRBs) using the ROSAT all-sky survey (RASS) data. The number of potential
X-ray afterglow candidates with respect to the expected number of
beamed GRBs allows to constrain the relative beaming angles of
GRB emission and afterglow emission at about 1-5 hrs after the GRB.
Key words: gamma-rays: bursts -- X-rays: general
Copyright The European Southern Observatory (ESO)