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arXiv 0709.2570astro-ph
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多波长伽马射线暴的ECLAIR观测

Multiwavelength Gamma-Ray Bursts Observations with ECLAIRs

Diego Gotz

摘要:

ECLAIR是下一代空间仪器,将完全致力于伽马射线暴(GRB)的多波长研究。它由一个编码掩模望远镜组成,具有宽视场(~2 sr),由6400个CdTe像素(~1000 cm ^2)制成,将工作在4-300 keV能带。由于机载实时事件处理,预计每年将定位约80个GRB。伽玛暴(和其他瞬变)坐标将在爆发开始后的几秒钟内分布,典型的不确定性为~5-10弧分。探测系统还将包括一个软X射线照相机(1-10 keV),以便详细研究即时软X射线发射,并将ECLAIR观测到的大约一半伽马射线暴的误差框减少到约30角秒。ECLAIR预计将于2011年底发射,届时将成为唯一能够为伽马射线暴触发提供足够定位精度的仪器,以便利用届时可用的强大地面光谱望远镜进行伽马射线暴后续观测。我们将介绍ECLAIR项目的现状及其可能的发展。

英文摘要:

ECLAIRs is the next space borne instrument that will be fully dedicated to multi-wavelength studies of Gamma-Ray Bursts (GRBs). It consists of a coded mask telescope with a wide (~2 sr) field of view, made of 6400 CdTe pixels (~1000 cm^2), which will work in the 4-300 keV energy band. It is expected to localise ~80 GRBs/yr, thanks to the on-board real time event processing. The GRBs (and other transients) coordinates will be distributed within a few seconds from the onset of the burst with a typical uncertainty of ~5-10 arcmin. The detection system will also include a soft X-ray camera (1-10 keV) allowing to study in detail the prompt soft X-ray emission and to reduce the error box for about half of the GRBs seen by ECLAIRs to ~30 arcsec. ECLAIRs is expected to be flown in late 2011 and to be the only instrument capable of providing GRB triggers with sufficient localisation accuracy for GRB follow-up observations with the powerful ground based spectroscopic telescopes available by then. We will present the current status of the ECLAIRs project and its possible developments.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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