VERITAS/Breakthrough Listen 对光学技术特征信号的搜寻
天体物理仪器与方法
2023-08-09 v1
摘要
突破聆听（Breakthrough Listen）计划正在使用全球多台望远镜执行一项搜寻“技术特征信号”（technosignatures）的项目：即来自太阳系外、人造的地外发射器。VERITAS 合作组于 2018 年加入该计划，并提供搜寻一种特定技术特征信号的能力：可在星际距离上探测到的持续数纳秒的光学脉冲。我们在此报告 2019 和 2020 年对突破聆听目标开展的专用 VERITAS 观测以及自 2012 年收集的 VERITAS 档案数据的分析与结果。我们对 136 个目标的 30 小时专用观测和 140 个目标的 249 次档案观测进行了分析，未发现任何与技术特征信号一致的信号。结果用于对承载发射文明恒星的比例给出限制。我们还讨论了观测的最小脉冲灵敏度，并展示了 VERITAS 对 CALIOP 的观测：CALIPSO 卫星上搭载的星基脉冲激光。利用为技术特征信号搜寻开发的分析技术，VERITAS 对这些脉冲的探测可检验我们的分析效率，并作为一项重要的原理验证。
引用
@article{arxiv.2306.17680,
title = {A VERITAS/Breakthrough Listen Search for Optical Technosignatures},
author = {Atreya Acharyya and Colin Adams and Avery Archer and Priyadarshini Bangale and Pedro Batista and Wystan Benbow and Aryeh Brill and M Capasso and Manel Errando and Abraham Falcone and Qi Feng and John Finley and Gregory Foote and Lucy Fortson and Amy Furniss and Sean Griffin and William Hanlon and David Hanna and Olivier Hervet and Claire Hinrichs and John Hoang and Jamie Holder and T. Humensky and Weidong Jin and Philip Kaaret and Mary P. Kertzman and Maria Kherlakian and David Kieda and Tobias Kleiner and Nikolas Korzoun and Sajan Kumar and Mark Lang and Matthew Lundy and Gernot Maier and Conor McGrath and Matthew Millard and Hayden Miller and John Millis and Connor Mooney and Patrick Moriarty and Reshmi Mukherjee and Stephan O'Brien and Rene A. Ong and Martin Pohl and Elisa Pueschel and John Quinn and Kenneth J. Ragan and Paul Reynolds and Deivid Ribeiro and Emmet Thomas Roache and Jamie Ryan and Iftach Sadeh and Lab Saha and Marcos Santander and Glenn H Sembroski and Ruo Shang and Donggeun Tak and Anjana Talluri and James Tucci and Nico Vazquez and David Williams and Sam Wong and Jooyun Woo and David DeBoer and Howard Isaacson and Imke de Pater and Danny Price and Andrew Siemion},
journal= {arXiv preprint arXiv:2306.17680},
year = {2023}
}
备注
15 pages, 7 figures