INTEGRAL Spectrometer SPI's GRB detection capabilities
Open Access
- 17 November 2003
- journal article
- letter
- Published by EDP Sciences in Astronomy & Astrophysics
- Vol. 411 (1) , L299-L305
- https://doi.org/10.1051/0004-6361:20031231
Abstract
The spectrometer SPI, one of the two main instruments of the INTEGRAL spacecraft, offers significant gamma-ray burst detection capabilities. In its 35° (full width) field of view SPI is able to localise gamma-ray bursts at a mean rate of ~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.Keywords
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