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首页> 外文期刊>International journal of modern physics, D. Gravitation, astrophysics, cosmology >Early detection and localization of gravitational waves from compact binary coalescences
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Early detection and localization of gravitational waves from compact binary coalescences

机译：紧凑型二元合并的重力波的早期检测和定位

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摘要

With the first detection of gravitational waves expected in the next decade, increasing efforts are made toward the electromagnetic follow-up observations of gravitational wave events. In this paper, I discuss the prospect of real-time detection and source localization for gravitational waves from neutron star-neutron star binary or neutron star-black hole binary coalescences before their merger. I show that several low-latency search pipelines are already under intensive development with the aim to provide real-time detections of these events. There will also be fast responding and/or wide-field electromagnetic telescopes available to help catch the electromagnetic or particle flashes possibly occurring during or immediately after their merger. It has been shown that a few coalescence events per year can be detected by advanced LIGO-VIRGO detector network tens of seconds before their merger. However, most of these events will have poor sky direction localization for the existing gravitational-wave detector network, making it extremely challenging for follow up observations by astronomical telescopes aiming at catching events around the merger time. A larger detector network including the planned detectors in Japan and in India will play an important role in improving the angular resolution and making prompt follow up observations much more realistic. A new detector at the Southern Hemisphere AIGO will further contribute significantly to this aspect.
机译：预计在下一个十年中将首次检测到引力波，因此人们加大了对电磁波对引力波事件进行观测的努力。在本文中，我讨论了中子星-中子星二元或中子星-黑洞二元合并之前的引力波实时检测和源定位的前景。我展示了一些低延迟搜索管道已经在密集开发中，目的是提供对这些事件的实时检测。也将有快速响应和/或广域电磁望远镜，以帮助捕捉合并期间或合并之后可能发生的电磁或粒子闪光。已经显示，高级LIGO-VIRGO检测器网络可以在合并之前的几十秒每年检测出一些合并事件。但是，对于现有的重力波探测器网络，大多数这些事件的天空方向定位都将很差，这使得天文望远镜的跟踪观测极具挑战性，这些天文望远镜旨在捕获合并时间附近的事件。包括日本和印度计划中的探测器在内的更大探测器网络将在提高角分辨率和使迅速跟进观测变得更加现实方面发挥重要作用。南半球AIGO的新型探测器将进一步为这一方面做出贡献。

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