Astronomy and Astrophysics – Astrophysics
Scientific paper
2002-05-21
AIP Conf.Proc. 662 (2003) 481-487
Astronomy and Astrophysics
Astrophysics
Paper presented at the Woods Hole GRB conference on behalf of the ECLAIRs international consortium. 7 pages. 2 figures. AIP co
Scientific paper
10.1063/1.1579407
ECLAIRs is a French microsatellite devoted to the observation of the prompt optical and X-ray emission of GRBs. For about 100 GRBs/yr, independent of their duration, ECLAIRs will provide high time resolution high sensitivity spectral coverage from a few eV up to ~50 keV and localization to ~5 arcsec in near real time. This capability is achieved by combining wide field optical and X-ray cameras sharing a common field of view (~1/6th of the sky) with the coded-mask imaging telescopes providing the triggers and the coarse localizations of the bursts. Given the delays to start ground-based observations in response to a GRB trigger, ECLAIRs is unique in its ability to observe the early phases (the first ~20 sec) of all GRBs at optical wavelengths. Furthermore, with its mode of operation, ECLAIRs will enable to search for optical and X-ray precursors expected from theoretical grounds. Finally ECLAIRs is proposed to operate simultaneously with GLAST on a synchronous orbit. This combination will ensure broad band spectral coverage from eV to GeV energies for the GRBs detected by the two satellites, ECLAIRs further providing their accurate localization to enable follow-up studies.
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