期刊
ASTRONOMY & ASTROPHYSICS
卷 411, 期 1, 页码 L299-L305出版社
E D P SCIENCES
DOI: 10.1051/0004-6361:20031231
关键词
gamma-ray bursts; GRB; gamma-ray astronomy; INTEGRAL; SPI
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.
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