论文标题
与大型望远镜的Cherenkov望远镜阵列的Galactic Pevatron候选Lhaaso J2108+5157观察
Observation of the galactic PeVatron candidate LHAASO J2108+5157 with the Large-Sized Telescope for Cherenkov Telescope Array
论文作者
论文摘要
Cherenkov望远镜阵列（CTA）天文台将是下一代地面的非常高能量的伽马射线天文台，敏感从20 GEV到300 TEV。目前处于调试阶段的大型望远镜原型（LST-1）于2018年10月在西班牙拉帕尔玛（La Palma）开幕。它是La Palma建造的CTA的四个LST望远镜中的第一个。在2021年，LST-1对Lhaaso合作最近发现的Galactic Pevatron候选者之一Lhaaso J2108+5157进行了观察。我们介绍了我们对LST-1数据的分析的结果，对多TEV频段中源的发射构成了强烈的限制。我们还使用XMM-Newton使用12年的Fermi-LAT数据和机会观察的目标进行了多波长建模的结果。我们测试了产生高能量发射的母体颗粒的不同场景，并在其光谱上放大了约束。
The Cherenkov Telescope Array (CTA) Observatory will be the next-generation ground-based very-high-energy gamma-ray observatory, sensitive from 20 GeV up to 300 TeV. The Large-Sized Telescope prototype (LST-1), currently in the commissioning phase, was inaugurated in October 2018 on La Palma (Spain). It is the first of four LST telescopes for CTA, to be built in La Palma. In 2021, LST-1 performed observations of one of the Galactic PeVatron candidates, LHAASO J2108+5157, recently discovered by the LHAASO collaboration. We present results of our analysis of the LST-1 data, putting strong constraints on the emission of the source in the multi-TeV band. We also present results of multi-wavelength modeling using 12-years Fermi-LAT data and Target of Opportunity observations with XMM-Newton. We test different scenarios for the parent particles producing the high energy emission and put constraints on their spectra.
