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arXiv 0710.1941astro-ph
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Gamma-Ray 100附近的天文学TeV与一个大型μ子探测器在非常高的海拔运行

Gamma-Ray Astronomy around 100 TeV with a large Muon Detector operated at Very High Altitude

G. Di Sciascio, T. Di Girolamo, E. Rossi, L. Saggese

摘要:

在100 TeV及以上的测量是下一代高能伽马射线天文学实验的一个重要目标,以解决银河系宇宙射线起源的仍然悬而未决的问题。探测极低辐射通量的最自然的实验解决方案是广泛的空气簇射(EAS)阵列。它们受益于接近90%的占空比和非常大的视场(约2 sr),但灵敏度受到其角分辨率和较差的宇宙射线背景辨别力的限制。在10 TeV以上,排除强子背景的标准技术是寻找“贫μ子”簇射。在本文中,我们讨论了一个大μ子探测器(A=2500米2)与EAS阵列在很高的高度(>4000米a.s.l.)来探测100 TeV左右的伽马射线通量。基于模拟的能量范围和灵敏度的估计。

英文摘要:

Measurements at 100 TeV and above are an important goal for the next generation of high energy gamma-ray astronomy experiments to solve the still open problem of the origin of galactic cosmic rays. The most natural experimental solution to detect very low radiation fluxes is provided by the Extensive Air Shower (EAS) arrays. They benefit from a close to 90% duty cycle and a very large field of view (about 2 sr), but the sensitivity is limited by their angular resolution and their poor cosmic ray background discrimination. Above 10 TeV the standard technique for rejecting the hadronic background consists in looking for "muon-poor" showers. In this paper we discuss the capability of a large muon detector (A=2500 m2) operated with an EAS array at very high altitude (>4000 m a.s.l.) to detect gamma-ray fluxes around 100 TeV. Simulation-based estimates of energy ranges and sensitivities are presented.

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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