A ROSAT Wide Field Camera search for XUV bursts
Abstract
We have searched the ROSAT Wide Field Camera all-sky survey for short time-scale (less than 50 s) XUV bursts down to a limiting count of 5 x 10 exp -3 count/sq arcmin, corresponding to an incident flux of about 3 x 10 exp -10 erg/sq cm. In a total observation period of 171 d covering the entire sky, we found no evidence for such events. The present results are used to place limits on the log N-log S relation for gamma-ray bursts and constraints on the spectral shape of the previously reported ultrasoft X-ray transients.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- February 1993
- DOI:
- 10.1093/mnras/260.1.L25
- Bibcode:
- 1993MNRAS.260L..25O
- Keywords:
-
- Astronomical Photography;
- Gamma Ray Bursts;
- Rosat Mission;
- Sky Surveys (Astronomy);
- Extreme Ultraviolet Radiation;
- Proportional Counters;
- Spectral Line Width;
- Astronomy