Erratum: Search for gravitational waves from Scorpius X-1 in the second Advanced LIGO observing run with an improved hidden Markov model [Phys. Rev. D 100 , 122002 (2019)]
Erratum: Search for gravitational waves from Scorpius X-1 in the second Advanced LIGO observing run with an improved hidden Markov model [Phys. Rev. D 100 , 122002 (2019)]
复制标题
勘误：使用改进的隐马尔可夫模型在第二次高级 LIGO 观测运行中搜索来自 Scorpius X-1 的引力波 [Phys.
DOI：
10.1103/physrevd.104.109903
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发表时间：
2021
影响因子：
5
通讯作者：
Abbott B
中科院分区：
文献类型：
--
作者：
Abbott B
我们目前的结果从半相干搜索连续引力波从低质量的X射线双星天蝎座X-1，使用隐马尔可夫模型（HMM）跟踪自旋徘徊。这种搜索改进了以前的HMM为基础的搜索LIGO数据使用改进的频域匹配滤波器，统计，并通过分析数据从先进的LIGO的第二次观测运行。在搜索的频率范围内，从60到650赫兹，我们没有发现引力辐射的证据。在194.6赫兹，最敏感的搜索频率，我们报告的上限引力波应变（在95%的置信度）的边缘化超过源倾斜角。这是迄今为止对Scorpius X-1最敏感的搜索，它是专门设计的，在存在自旋漂移的情况下具有鲁棒性。
We present results from a semicoherent search for continuous gravitational waves from the low-mass x-ray binary Scorpius X-1, using a hidden Markov model (HMM) to track spin wandering. This search improves on previous HMM-based searches of LIGO data by using an improved frequency domain matched filter, the-statistic, and by analyzing data from Advanced LIGO’s second observing run. In the frequency range searched, from 60 to 650 Hz, we find no evidence of gravitational radiation. At 194.6 Hz, the most sensitive search frequency, we report an upper limit on gravitational wave strain (at 95% confidence) ofwhen marginalizing over source inclination angle. This is the most sensitive search for Scorpius X-1, to date, that is specifically designed to be robust in the presence of spin wandering.