Panoramic SETI: program update and high-energy astrophysics applications
Panoramic SETI: program update and high-energy astrophysics applications
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DOI：
10.1117/12.2630772
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发表时间：
2022-08
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通讯作者：
J. Maire;S. Wright;J. Holder;David P. Anderson;W. Benbow;Aaron M. Brown;Maren Cosens;Gregory Foote;W. Hanlon;O. Hervet;P. Horowitz;A. Howard;Ryan Lee;Wei Liu;R. Raffanti;Nicolas Rault-Wang;R. Stone;D. Werthimer;James Wiley;D. Williams
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作者：
J. Maire;S. Wright;J. Holder;David P. Anderson;W. Benbow;Aaron M. Brown;Maren Cosens;Gregory Foote;W. Hanlon;O. Hervet;P. Horowitz;A. Howard;Ryan Lee;Wei Liu;R. Raffanti;Nicolas Rault-Wang;R. Stone;D. Werthimer;James Wiley;D. Williams
光学SETI(搜索地外智能)仪器可以探索非常快的时间域，特别是在大范围的天空覆盖下，为新的发现提供了机会，这些发现可以补充多用途探测器和时间域天体物理学。全景SETI实验(PANOSETI)旨在观察宽视场(∼，2,500平方度)内持续时间为纳秒到秒的光学瞬变。通过使用两个由数十个望远镜组成的组件，通过符合检测来抑制虚假信号。三台PANOSETI望远镜连接到用于在纳秒级别同步时钟的大白兔计时网络，已在利克天文台的两个相距677米的地点部署，以区分附近的光源(如地球大气中粒子簇射的切伦科夫光)和远距离的天体物理来源。在进行这一部署的同时，我们介绍了在弗雷德·劳伦斯·惠普尔天文台使用四个12米VERITAS伽马射线望远镜和两个PANOSETI望远镜进行四个晚上的同时观测所获得的结果。我们报道了PANOSETI第一次探测到天体物理伽马射线，包括三个能量在∼15TeV到∼50TeV之间的事件。它们是由蟹状星云发出的，并通过联合VERITAS观测确定为伽马射线。
Optical SETI (Search for Extraterrestrial Intelligence) instruments that can explore the very fast time domain, especially with large sky coverage, offer an opportunity for new discoveries that can complement multimessenger and time domain astrophysics. The Panoramic SETI experiment (PANOSETI) aims to observe optical transients with nanosecond to second duration over a wide field-of-view (∼2,500 sq.deg.) by using two assemblies of tens of telescopes to reject spurious signals by coincidence detection. Three PANOSETI telescopes, connected to a White Rabbit timing network used to synchronize clocks at the nanosecond level, have been deployed at Lick Observatory on two sites separated by a distance of 677 meters to distinguish nearby light sources (such as Cherenkov light from particle showers in the Earth’s atmosphere) from astrophysical sources at large distances. In parallel to this deployment, we present results obtained during four nights of simultaneous observations with the four 12-meter VERITAS gamma-ray telescopes and two PANOSETI telescopes at the Fred Lawrence Whipple Observatory. We report PANOSETI’s first detection of astrophysical gamma rays, comprising three events with energies in the range between ∼15 TeV and ∼50 TeV. These were emitted by the Crab Nebula, and identified as gamma rays using joint VERITAS observations.