引力波事件电磁跟随观测的预警系统
高能天体物理现象
2021-01-06 v2 广义相对论与量子宇宙学
摘要
双中子星（BNSs）在设计灵敏度的 Advanced LIGO 与 Virgo 探测器频段内将停留约 -- 15 分钟。引力波（GW）数据的匹配滤波原则上可累积足够信噪比（SNR），从而在伴星碰撞并合前数十秒识别 forthcoming 事件。本文报告一个预警引力波探测流水线的设计与测试。对于红移足够低、从而在并合前 累积足够大 SNR 的源，可产生预警警报。我们发现约 7%（相应为 49%）的可探测 BNS 并合将在并合前 （）被探测到。约 2% 的可探测 BNS 并合将在并合前被探测到并定位在 以内（90% 可信区间）。多台广视场望远镜的协同观测可在并合前后数秒捕获该事件。设计灵敏度的 LIGO-Virgo 探测器可促成在并合起始时观测至少一次事件。
引用
@article{arxiv.2008.04288,
title = {An early warning system for electromagnetic follow-up of gravitational-wave events},
author = {Surabhi Sachdev and Ryan Magee and Chad Hanna and Kipp Cannon and Leo Singer and Javed Rana SK and Debnandini Mukherjee and Sarah Caudill and Chiwai Chan and Jolien D. E. Creighton and Becca Ewing and Heather Fong and Patrick Godwin and Rachael Huxford and Shasvath Kapadia and Alvin K. Y. Li and Rico Ka Lok Lo and Duncan Meacher and Cody Messick and Siddharth R. Mohite and Atsushi Nishizawa and Hiroaki Ohta and Alexander Pace and Amit Reza and B. S. Sathyaprakash and Minori Shikauchi and Divya Singh and Leo Tsukada and Daichi Tsuna and Takuya Tsutsui and Koh Ueno},
journal= {arXiv preprint arXiv:2008.04288},
year = {2021}
}
备注
small update in numbers caused by using a more updated local BNS rate estimate