Observations of cosmic gamma ray bursts with WATCH on EURECA

Søren Brandt, N. Lund, A. J. Castro-Tirado

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

19 Cosmic Gamma-Ray Bursts were detected by the WATCH wide field X-ray monitor during the 11 months flight of EURECA. The identification of the bursts were complicated by a high frequency of background of events caused by high energy cosmic ray interactions in the detector and by low energy, trapped particle streams. These background events may simulate the count rate increases characteristic of cosmic gamma bursts. For 12 of the detected events, their true cosmic nature have been confirmed through consistent localizations of the burst sources based on several independent WATCH data sets. The derived positions of the bursts are reported. Additionally, most of the events have been confirmed by coincident detections with instruments on other spacecrafts. The features of two of the bursts and the results of searches for related events in the optical are described.
Original languageEnglish
JournalAdvances in Space Research
Volume16
Issue number8
Pages (from-to)(8)43-(8)46
ISSN0273-1177
Publication statusPublished - 1995

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