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arXiv 2107.12656astro-ph.IM
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为200 GeV - 50 TeV gamma-ray天文学设计的ALTO粒子探测器阵列的预期性能

Expected performance of the ALTO particle detector array designed for 200 GeV - 50 TeV gamma-ray astronomy

M. Senniappan, Y. Becherini, M. Punch, S. Thoudam, T. Bylund, G. Kukec Mezek, J. -P. Ernenwein

摘要:

CoMET是R $\&$ D的一个项目,旨在设计一个对$\sim$ 200 GeV以上能量敏感的甚高能伽马射线观测站。科学目标包括连续观测软谱VHE伽马射线源,如活动星系核(AGN)和瞬变,如伽马射线暴(GRB)。有了这些目标,CoMET被设计成具有低能量阈值,在高海拔处具有约2 sr的宽视场,并将ALTO粒子探测器与CLiC空气切伦科夫探测器相结合。在这篇文章中,我们只关注ALTO粒子探测器阵列的性能。水切伦科夫探测器用于探测大气簇射中的次级粒子,而散射器用作μ子计数器。详细的研究是通过空气淋浴,检测器和触发模拟,然后由事件参数的重建和信号(伽马射线)从背景(宇宙射线)的提取。我们目前的灵敏度的ALTO探测器使用两个SEMLA分析配置的天体物理源的列表。

英文摘要:

The CoMET is an R$\&$D project aiming to design a very-high-energy (VHE) gamma-ray observatory sensitive to energies above $\sim$ 200 GeV. The science goals include continuous observation of soft-spectrum VHE gamma-ray sources such as Active Galactic Nuclei (AGNs) and transients like Gamma-Ray Bursts (GRBs). With these objectives, CoMET is designed to have a low energy threshold with a wide field-of-view of about 2 sr, at a high altitude, and combines ALTO particle detectors with CLiC air-Cherenkov detectors. In this contribution, we focus on the ALTO particle detector array performance only. Water Cherenkov detectors are used for the detection of secondary particles in atmospheric air showers while scintillators serve as muon counters. A detailed study is presented through air-shower, detector and trigger simulations, followed by the reconstruction of the event parameters and the extraction of the signal (gamma-rays) from the background (cosmic-rays). We present the sensitivity of the ALTO detectors to a list of astrophysical sources using two SEMLA analysis configurations.

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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