ROSAT OBSERVATIONS OF GAMMA-RAY BURST ERROR BOXES .2. GRB910814 AND GRB920525

Citation
Te. Harrison et al., ROSAT OBSERVATIONS OF GAMMA-RAY BURST ERROR BOXES .2. GRB910814 AND GRB920525, The Astronomical journal, 112(1), 1996, pp. 216-220
Citations number
14
Categorie Soggetti
Astronomy & Astrophysics
Journal title
ISSN journal
00046256
Volume
112
Issue
1
Year of publication
1996
Pages
216 - 220
Database
ISI
SICI code
0004-6256(1996)112:1<216:ROOGBE>2.0.ZU;2-0
Abstract
We present ROSAT PSPC observations of the southeastern quadrant of the COMPTEL error box of GRB910814, and ROSAT HRI observations of the Int er-Planetary Network (IPN) error box of GRB920525. The goal of these o bservations was to search for a quiescent x-ray counterpart of these g amma-ray bursts. The field of the x-ray observations for GRB980814 inc luded 1.5 degrees of the IPN error annulus within the COMPTEL 2 sigma error contour. Thirty-nine x-ray sources were detected within the 2 de grees field of the PSPC observation. One of these sources is located w ithin the IPN annulus, but this detection is consistent with the expec ted background rate for faint x-ray sources. B and V CCD images of the fields of the nine strongest x-ray sources were obtained to try to id entify the optical counterparts of these sources. Likely candidates we re identified for a number of these x-ray sources. In the field of GRB 920525, four x-ray sources were identified, one of which was bright. N one of these sources, however, were located within the IPN error box. (C) 1996 American Astronomical Society.