INTEGRAL Spectrometer SPI's GRB detection capabilities. GRBs detected inside SPI's FoV and with the anticoincidence system ACS

A von Kienlin, V Beckmann, A Rau, N Arend, K Bennett, B McBreen, Paul Connell, S Deluit, L Hanlon, K Hurley, M Kippen, GG Lichti, L Moran, R Preece, J-P Roques, V Schonfelder, G Skinner, A Strong, R Williams

Research output: Contribution to journalArticle

68 Citations (Scopus)

Abstract

The spectrometer SPI, one of the two main instruments of the INTEGRAL spacecraft, offers significant gamma-ray burst detection capabilities. In its 35degrees (full width) field of view SPI is able to localise gamma-ray bursts at a mean rate of similar to 0.8 /month. With its large anticoincidence shield of 512 kg of BGO crystals SPI is able to detect gamma-ray bursts quasi omni-directionally with a very high sensitivity. Burst alerts of the anticoincidence shield are distributed by the INTEGRAL Burst Alert System. In the first 8 months of the mission about 0.8 / day gamma-ray burst candidates and 0.3 / day gamma-ray burst positions were obtained with the anticoincidence shield by interplanetary network triangulations with other spacecrafts.
Original languageEnglish
Pages (from-to)L299-L305
JournalAstronomy and Astrophysics
Volume411
Issue number1
DOIs
Publication statusPublished - 1 Nov 2003

Keywords

  • SPI
  • INTEGRAL
  • GRB
  • gamma-ray astronomy
  • gamma-ray bursts

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