论文标题
从PSR J0437 $ - $ 4715中搜索连续重力波，在O3 Ligo数据中使用隐藏的Markov模型
Search for continuous gravitational waves from PSR J0437$-$4715 with a hidden Markov model in O3 LIGO data
论文作者
论文摘要
提出了结果，用于半连通搜索从毫秒的Pulsar PSR J0437 $ - $ 4715的连续重力波，使用隐藏的Markov模型跟踪旋转旋转的旋转数据，该数据中的第三个Ligo-Virgo观察跑步中的Ligo数据。这是首次搜索PSR J0437 $ - $ 4715，以覆盖从$ 60 $ Hz到$ 500 $ Hz的频率范围，同时容纳了世俗无线电播放的随机旋转偏差。进行两次搜索，合理的连贯性时间为$ 10 $ $天和$ 30 $天，因为尚不清楚引力波发射四极的频率徘徊的时间尺度。前者分析没有尚存的候选人，而后者在否决权后产生五个候选人。五个幸存者中每个幸存者的检测统计量都是天空位置的函数，以准备将来进行后续分析，例如在Ligo-Virgo-Kagra期间，第四次观察。
Results are presented for a semi-coherent search for continuous gravitational waves from the millisecond pulsar PSR J0437$-$4715, using a hidden Markov model to track spin wandering, in LIGO data from the third LIGO-Virgo observing run. This is the first search for PSR J0437$-$4715 to cover a wide frequency range from $60$ Hz to $500$ Hz and simultanously accommodate random spin deviations from the secular radio ephemeris. Two searches are performed with plausible coherence times of $10$ days and $30$ days, as the frequency wandering time-scale of the gravitational-wave-emitting quadrupole is unknown. The former analysis yields no surviving candidates, while the latter yields five candidates after the veto procedure. The detection statistic of each of the five survivors is mapped as a function of sky position, in preparation for follow-up analyses in the future, e.g. during LIGO-Virgo-KAGRA fourth observing run.
