论文标题
在第二个高级Ligo观察中，搜索Fomalhaut B的连续重力波，该均具有隐藏的Markov模型
Search for continuous gravitational waves from Fomalhaut b in the second Advanced LIGO observing run with a hidden Markov model
论文作者
论文摘要
结果是通过半标准搜索来自附近中子星候选人Fomalhaut B的连续重力波的半搜索，并使用高级Ligo的第二次观察运行中收集的数据提出了结果。该搜索基于隐藏的马尔可夫模型方案，能够同时跟踪恒星的世俗旋转和随机的时序噪声的信号频率演变。该方案与频域匹配的过滤器（$ \ MATHCAL {F} $ - 统计量）结合使用，在五天的时间延伸中相干地计算出来。搜索频带100-1000 Hz。在通过否决权的层次结构通过上述候选人之后，一位候选人略高于1％的错误警报概率阈值，以进行进一步审查。找不到连续波的强烈证据。我们介绍以90％置信度搜索的全频段中的应变上限。
Results are presented from a semicoherent search for continuous gravitational waves from a nearby neutron star candidate, Fomalhaut b, using data collected in the second observing run of Advanced LIGO. The search is based on a hidden Markov model scheme, capable of tracking signal frequency evolution from the star's secular spin down and stochastic timing noise simultaneously. The scheme is combined with a frequency domain matched filter ($\mathcal{F}$-statistic), calculated coherently over five-day time stretches. The frequency band 100-1000 Hz is searched. After passing the above-threshold candidates through a hierarchy of vetoes, one candidate slightly above the 1% false alarm probability threshold remains for further scrutiny. No strong evidence of continuous waves is found. We present the strain upper limits in the full frequency band searched at 90% confidence level.
