Eichler D, Beskin G
Department of Physics, Ben Gurion University, Beer Sheva, Israel.
Astrobiology. 2001 Winter;1(4):489-93. doi: 10.1089/153110701753593892.
We propose using large Air Cerenkov telescopes (ACTs) to search for optical, pulsed signals from extraterrestrial intelligence. Such dishes collect tens of photons from a nanosecond-scale pulse of isotropic equivalent power of tens of solar luminosities at a distance of 100 pc. The field of view for giant ACTs can be on the order of 10 square degrees, and they will be able to monitor 10-100 stars simultaneously for nanosecond pulses of about 6th magnitude or brighter. Using the Earth's diameter as a baseline, orbital motion of the planet could be detected by timing the pulse arrivals.
我们提议使用大型大气契伦科夫望远镜（ACTs）来搜寻来自外星智慧的光学脉冲信号。这样的碟形望远镜能在距离100秒差距处，收集到来自各向同性等效功率达数十倍太阳光度的纳秒级脉冲的数十个光子。大型ACTs的视场可达10平方度左右，它们将能够同时监测10到100颗恒星，以寻找大约6等或更亮的纳秒脉冲。以地球直径为基线，通过对脉冲到达时间进行计时，可以探测到行星的轨道运动。
