Astron. Astrophys. Suppl. Ser.
Volume 138, Number 3, September 1999Gamma-Ray Bursts in the Afterglow Era Contents Rome, November 3-6, 1998
|Page(s)||441 - 442|
|Published online||15 September 1999|
Search for GRB afterglows in the ROSAT all-sky survey
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.
Send offprint request to: J. Greiner
Accepted: 10 May 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
© European Southern Observatory (ESO), 1999