Hard X-ray Bursts Recorded by the IBIS Telescope of the INTEGRAL Observatory in 2003-2009

TL;DR

This study analyzed all available IBIS/INTEGRAL data from 2003-2009, detecting 834 hard X-ray bursts, mostly from GX 354-0, and estimated source distances using burst brightness limits.

Contribution

The paper provides a comprehensive catalog of hard X-ray bursts detected over six years and estimates source distances based on burst luminosity, expanding understanding of X-ray burst occurrences.

Findings

Detected 834 hard X-ray bursts in 2003-2009

239 bursts recorded simultaneously in X-ray range

Estimated upper limits on source distances

Abstract

To find X-ray bursts from sources within the field of view of the IBIS/INTEGRAL telescope, we have analysed all the archival data of the telescope available at the time of writing the paper (the observations from January 2003 to April 2009). We have detected 834 hard (15-25 keV) X-ray bursts, 239 of which were simultaneously recorded by the JEM-X/INTEGRAL telescope in the standard X-ray energy range. More than 70% of all bursts (587 events) have been recorded from the well-known X-ray burster GX 354-0. We have found upper limits on the distances to their sources by assuming that the Eddington luminosity limit was reached at the brightness maximum of the brightest bursts.