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arXiv 2206.14014astro-ph.HE
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寻找LIGO/Virgo时代的多信使事件

Search for multi-messenger events during LIGO/Virgo era

Tosta e Melo, I., LVK collaboration

摘要:

多信使天文学是一个广阔而不断扩展的领域,因为电磁观测(EM)不再是探索宇宙的唯一方式。由于新的信使,天体物理事件与引力波(GW)和EM发射不再是一个梦想的天文学界。当LIGO-Virgo网络检测到两个低质量紧凑物体的GW信号与一颗双星中子星(BNS,GW 170817)一致时,GW多信使天文学取得了突破,这一事件产生了短伽马射线暴(GRB)和千诺瓦。虽然GW 170817代表了BNS合并的证据,至少是一些GRB的祖先,但预计广泛的高能天体物理现象将伴随着GWs和光子的发射。在这里,我们提出了一个未建模的方法来搜索GWs具有伽马和无线电同行,使用LIGO-Virgo的数据和观测的合作伙伴望远镜。我们还讨论了在LIGO-Virgo第三次观测运行(O3 a)的第一部分期间针对天体物理事件的未建模相干搜索的最新结果:费米和斯威夫特卫星探测到的105个伽玛暴。

英文摘要:

Multi-messenger astronomy is a vast and expanding field as electromagnetic observations (EM) are no longer the only way of exploring the Universe. Due to the new messengers, astrophysical events with both gravitational waves (GWs) and EM emission are no longer a dream of the astronomical community. A breakthrough for GW multi-messenger astronomy came when the LIGO-Virgo network detected a GW signal of two low-mass compact objects consistent with a binary neutron star (BNS, GW170817) an event that generated a short gamma-ray burst (GRBs) and a kilonova. While GW170817 represents the testimony to BNS mergers being the progenitor of at least some GRBs, a wide range of highly energetic astrophysical phenomena is expected to be accompanied by the emission of GWs and photons. Here we present an unmodelled method to search for GWs having gamma and radio counterparts, using the LIGO-Virgo data and observations of partner telescopes. We also discuss the most recent results of the unmodelled coherent searches targeting astrophysical events during the first part of the LIGO-Virgo third observing run (O3a): 105 GRBs detected by the Fermi and Swift satellites.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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