Prospects for joint reconstruction of imaging air Cherenkov telescope array and extensive air shower array

IF 10.2 4区 物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS
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引用次数: 0

Abstract

In this paper, we proposed a joint reconstruction of γ-ray events using both extensive air array (EAS) and Imaging air Cherenkov Telescope array (IACT). We considered eight Cherenkov telescopes to be built on the LHAASO (Large High Altitude Air Shower Observatory) site and investigate the improvement in differential sensitivity when combining the information from both IACT and Moun detectors of LHAASO-KM2A. We found that due to the higher cosmic ray background rejection power and higher gamma ray retention ratio provided by muon detectors of LHAASO, such a joint reconstruction can significantly improve the sensitivity of IACTs, especially for extended sources and long exposure time. The sensitivity of the eight-telescopes array can be improved by 25%60% in different energy ranges using joint reconstructions with muon detectors.

联合重建成像空气切伦科夫望远镜阵列和大范围空气喷淋阵列的前景
在本文中,我们提出了利用大范围空气阵列(EAS)和成像空气切伦科夫望远镜阵列(IACT)联合重建γ射线事件的方法。我们考虑在 LHAASO(大型高空气流淋浴观测站)上建造八台切伦科夫望远镜,并研究了在结合 LHAASO-KM2A 的 IACT 和 Moun 探测器的信息时,差分灵敏度的提高情况。我们发现,由于 LHAASO 的μ介子探测器具有更高的宇宙射线本底抑制能力和更高的伽马射线截留率,这种联合重建可以显著提高 IACTs 的灵敏度,特别是对于扩展源和长曝光时间。利用μ介子探测器的联合重建,八望远镜阵列在不同能量范围内的灵敏度可提高25%-60%。
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来源期刊
Journal of High Energy Astrophysics
Journal of High Energy Astrophysics Earth and Planetary Sciences-Space and Planetary Science
CiteScore
9.70
自引率
5.30%
发文量
38
审稿时长
65 days
期刊介绍: The journal welcomes manuscripts on theoretical models, simulations, and observations of highly energetic astrophysical objects both in our Galaxy and beyond. Among those, black holes at all scales, neutron stars, pulsars and their nebula, binaries, novae and supernovae, their remnants, active galaxies, and clusters are just a few examples. The journal will consider research across the whole electromagnetic spectrum, as well as research using various messengers, such as gravitational waves or neutrinos. Effects of high-energy phenomena on cosmology and star-formation, results from dedicated surveys expanding the knowledge of extreme environments, and astrophysical implications of dark matter are also welcomed topics.
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