GWTC-1: A Gravitational-Wave Transient Catalog of Compact Binary Mergers Observed by LIGO and Virgo during the First and Second Observing Runs
GWTC-1: A Gravitational-Wave Transient Catalog of Compact Binary Mergers Observed by LIGO and Virgo during the First and Second Observing Runs
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DOI：
10.1103/physrevx.9.031040
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发表时间：
2019-09-04
影响因子：
12.5
通讯作者：
Zweizig, J.
中科院分区：
文献类型：
--
作者：
Abbott, B. P.;Abbott, R.;Zweizig, J.
本文介绍了在先进引力波探测器网络的第一次和第二次观测中，对组成质量大于1 m圆点的聚并紧致双星的三次引力波搜索结果。在2015年9月12日至2016年1月19日的第一次观测运行（O1）中，探测到了来自三个双黑洞合并的引力波。第二次观测运行（O2）于2016年11月30日至2017年8月25日进行，首次探测到来自双中子星的引力波，此外还观测到来自7个双黑洞合并的引力波，其中4个是我们首次报道的：GW170729、GW170809、GW170818和GW170823。对于所有重要的引力波事件，我们提供了源属性的估计。探测到的双黑洞的总质量在18.6(-0.7)(+3.2)m -圆点和84.4(-11.1)(+15.8)m -圆点之间，距离在320(-110)（+120）和2840(-1360)(+1400)Mpc之间。没有检测到中子星-黑洞合并。除了高度重要的引力波事件外，我们还提供了一份估计每30天误报率小于1次的边缘候选事件列表。根据前两次观测的结果，其中包括每15天搜索数据的大约一次引力波探测，我们推断双中子星的合并率为110 - 3840 Gpc(-3) y(-1)，双黑洞的合并率为9.7 - 101 Gpc(-3) y(-1)，假设固定的人口分布，并确定中子星-黑洞合并率的90%上限为610 Gpc(-3) y（-1）。
We present the results from three gravitational-wave searches for coalescing compact binaries with component masses above 1 M-circle dot during the first and second observing runs of the advanced gravitational-wave detector network. During the first observing run (O1), from September 12, 2015 to January 19, 2016, gravitational waves from three binary black hole mergers were detected. The second observing run (O2), which ran from November 30, 2016 to August 25, 2017, saw the first detection of gravitational waves from a binary neutron star inspiral, in addition to the observation of gravitational waves from a total of seven binary black hole mergers, four of which we report here for the first time: GW170729, GW170809, GW170818, and GW170823. For all significant gravitational-wave events, we provide estimates of the source properties. The detected binary black holes have total masses between 18.6(-0.7)(+3.2) M-circle dot and 84.4(-11.1)(+15.8) M-circle dot and range in distance between 320(-110)(+120) and 2840(-1360)(+1400) Mpc. No neutron star-black hole mergers were detected. In addition to highly significant gravitational-wave events, we also provide a list of marginal event candidates with an estimated false-alarm rate less than 1 per 30 days. From these results over the first two observing runs, which include approximately one gravitational-wave detection per 15 days of data searched, we infer merger rates at the 90% confidence intervals of 110 - 3840 Gpc(-3) y(-1) for binary neutron stars and 9.7 - 101 Gpc(-3) y(-1) for binary black holes assuming fixed population distributions and determine a neutron star-black hole merger rate 90% upper limit of 610 Gpc(-3) y(-1).