Directed searches for continuous gravitational waves from twelve supernova remnants in data from Advanced LIGO’s second observing run
Directed searches for continuous gravitational waves from twelve supernova remnants in data from Advanced LIGO’s second observing run
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DOI：
10.1103/physrevd.101.083023
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发表时间：
2020-02
影响因子：
5
通讯作者：
L. Lindblom;B. Owen
中科院分区：
文献类型：
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作者：
L. Lindblom;B. Owen
我们使用Advanced Ligo的第二次观察跑步数据中描述了来自年轻的超新星残留物中十二个局部的非脉冲候选中子星的连续重力波的定向搜索。我们假设每个中子恒星都是隔离的，并搜索了从15到150 \，Hz的频率频段，与已知的年轻脉冲星的预期频率一致。在使用F统计量和应用基于数据的否决权的数据跨度相干地整合了范围为12.0至55.9天的数据之后，我们没有发现天体物理信号的证据。在某些情况下，我们对固有引力波振幅的上限设置了上限，在某些情况下，我们比10^{ - 25}强，通常大约要比Advanced Ligo的第一次观察运行的相同对象上的上限好两个。
We describe directed searches for continuous gravitational waves from twelve well localized non-pulsing candidate neutron stars in young supernova remnants using data from Advanced LIGO's second observing run. We assumed that each neutron star is isolated and searched a band of frequencies from 15 to 150\,Hz, consistent with frequencies expected from known young pulsars. After coherently integrating spans of data ranging from 12.0 to 55.9 days using the F-statistic and applying data-based vetoes, we found no evidence of astrophysical signals. We set upper limits on intrinsic gravitational wave amplitude in some cases stronger than 10^{-25}, generally about a factor of two better than upper limits on the same objects from Advanced LIGO's first observing run.