WATCH observations of gamma ray bursts during 1990–1992

A. Castro-Tirado, Søren Brandt, Niels Lund, I. Y. Lapshov, O. Terekhov, R. A. Sunyaev

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Abstract

The first WATCH/GRANAT Gamma‐Ray Burst Catalogue comprises 70 events which have been detected by WATCH during the period December 1989–September 1992. 32 GRBs could be localized within a 3σ error radii of 1°. We have found a weak (2.2σ) clustering of these 32 bursts towards the Galactic Center. However we conclude that there is no strong evidence of concentration of the bursts towards the Galactic Center or Plane. Around ∼10% of the 70 bursts showed x‐ray precursor or/and X‐ray tail. We discuss the possibility that two events, GRB 900126 and GRB 920311, would have been produced by the same source.
Original languageEnglish
Title of host publicationGamma-Ray Bursts, Proceedings of the 2nd Workshop
EditorsG. J. Fishman
PublisherAmerican Institute of Physics
Publication date1994
Pages17-21
DOIs
Publication statusPublished - 1994
SeriesAip Conference Proceedings
Volume307
ISSN0094-243X

Cite this

Castro-Tirado, A., Brandt, S., Lund, N., Lapshov, I. Y., Terekhov, O., & Sunyaev, R. A. (1994). WATCH observations of gamma ray bursts during 1990–1992. In G. J. Fishman (Ed.), Gamma-Ray Bursts, Proceedings of the 2nd Workshop (pp. 17-21). American Institute of Physics. Aip Conference Proceedings, Vol.. 307 https://doi.org/10.1063/1.45785