标题： GstLAL搜索分析方法在先进LIGO第二次观测运行和先进Virgo第一次观测运行中的致密双星合并分析 显示英文标题

标题： The GstLAL Search Analysis Methods for Compact Binary Mergers in Advanced LIGO's Second and Advanced Virgo's First Observing Runs

摘要： 在他们成功的第一轮观测之后（2015年9月12日至2016年1月12日），高级LIGO探测器进行了升级，以提高第二轮观测的灵敏度（2016年11月30日至2017年8月26日）。Advanced Virgo探测器于2017年8月1日加入了第二轮观测。我们讨论了在此期间在基于GstLAL的旋近管道中发生的更新，该管道用于检测紧凑双星合并产生的引力波，既在低延迟模式下，也在离线配置中。这些更新包括部署零延迟白化滤波器，将管道的整体延迟减少最多32秒，将Virgo数据流纳入分析，引入单探测器搜索以分析仅有一个探测器运行的时期的数据，向似然比排名统计量中添加新参数，扩大搜索的参数空间，并引入基于模板质量的异常信号剔除阈值方法。 显示英文摘要

摘要： After their successful first observing run (September 12, 2015 - January 12, 2016), the Advanced LIGO detectors were upgraded to increase their sensitivity for the second observing run (November 30, 2016 - August 26, 2017). The Advanced Virgo detector joined the second observing run on August 1, 2017. We discuss the updates that happened during this period in the GstLAL-based inspiral pipeline, which is used to detect gravitational waves from the coalescence of compact binaries both in low latency and an offline configuration. These updates include deployment of a zero-latency whitening filter to reduce the over-all latency of the pipeline by up to 32 seconds, incorporation of the Virgo data stream in the analysis, introduction of a single-detector search to analyze data from the periods when only one of the detectors is running, addition of new parameters to the likelihood ratio ranking statistic, increase in the parameter space of the search, and introduction of a template mass-dependent glitch-excision thresholding method.