Schanne 2007 ECLAIRs space GRB telescope

主要内容:
ECLAIRs, trigger GRBs in almost real time. Will be launched in 2012.

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文章信息:

arXiv:0711.3754 [pdf]

Title: The trigger function of the space borne gamma-ray burst telescope ECLAIRs

Authors: S. Schanne, B. Cordier, D. Gotz, A. Gros, P. Kestener, H. Le Provost, B. L'Huillier, M. Mur

Comments: 4 pages, proceedings of the "30^th International Cosmic Ray Conference (ICRC)", 3-12 July 2007, Merida, Yucatan, Mexico

Subjects: Astrophysics (astro-ph)

Gamma-ray bursts (GRB) sign energetic explosions in the Universe, occurring at cosmological distances. Multi-wavelength observations of GRB allow to study their properties and to use them as cosmological tools. In 2012 the space borne gamma-ray telescope ECLAIRs is expected to provide accurate GRB localizations on the sky in near real-time, necessary for ground-based follow-up observations. Led by CEA Saclay, France, the project is currently in its technical design phase. ECLAIRs is optimized to detect highly red-shifted GRB thanks to a 4 keV low energy threshold. A coded mask telescope with a 1024 cm^2 detection plane of 80x80 CdTe pixels permanently observes a 2 sr sky field. The on-board trigger detects GRB using count-rate increase monitors on multiple time-scales and cyclic images. It computes sky images in the 4-50 keV energy range by de-convolving detector plane images with the mask pattern and localizes newly detected sources with <10>