论文标题
在Ligo-Virgo第三观察过程中，搜索从故障脉冲星的长期瞬态重力波的搜索设置
Search setup for long-duration transient gravitational waves from glitching pulsars during LIGO-Virgo third observing run
论文作者
论文摘要
脉冲星正在旋转中子星，该星星发出电磁束。我们期望脉冲星慢慢降低其旋转频率。但是，已经观察到不同脉冲星的旋转频率的突然增加。这些事件称为“小故障”，其后是一个放松阶段，几天到几个月的时间尺度。引力波（GW）发射可能遵循这些特殊事件。我们概述了设置的概述，以分析高级Ligo和处女座的GW数据，第三观察（O3）Arxiv：2112.10990搜索已知脉冲发生后故障后持续数小时至几个月的瞬态GW信号。搜索方法包括将模板网格放置在带有固定网格间距的频轴空间中。然后，对于每个点，我们计算瞬态F统计量，该瞬态F统计量在一组瞬态参数（例如持续时间和启动时间的时间）上最大化。然后设置检测统计量的阈值，然后为每个候选者寻找峰值的峰值。
Pulsars are spinning neutron stars which emit an electromagnetic beam. We expect pulsars to slowly decrease their rotational frequency. However, sudden increases of the rotational frequency have been observed from different pulsars. These events are called "glitches" and they are followed by a relaxation phase with timescales from days to months. Gravitational wave (GW) emission may follow these peculiar events. We give an overview of the setup for an analysis of GW data from the Advanced LIGO and Virgo third observing run (O3) arXiv:2112.10990 searching for transient GW signals lasting hours to months after glitches in known pulsars. The search method consists of placing a template grid in frequency-spindown space with fixed grid spacings. Then, for each point we compute the transient F-statistic which is maximized over a set of transient parameters like the duration and start time of the potential signals. A threshold on the detection statistic is then set, and we search for peaks over the parameter space for each candidate.
