论文标题
重复FRB时没有周期性
The Absence of Periodicity in Repeating FRB
论文作者
论文摘要
流行的快速无线电爆发模型涉及旋转磁化的中子星，但尚未发现旋转周期性。小型数据集排除了FRB 121102中的精确周期性。最新观察到FRB 121102和FRB 20201124a的1500多个爆发也没有发现周期性。从严格期间$ p $中的余弦分布的随机偏移量为$ \ pm 0.6 p $的周期图仍将揭示基础周期性。长数据序列的期刊周期图的敏感性，例如在多天观察到的爆发，通过考虑个人观察会话来减轻频率漂移的缓慢漂移，并显示了FRB 121102的结果。考虑了没有内在周期性的重复FRB的模型，也考虑了明显的非重复使用FRB的模型。
Popular Fast Radio Burst models involve rotating magnetized neutron stars, yet no rotational periodicities have been found. Small datasets exclude exact periodicity in FRB 121102. Recent observations of over 1500 bursts from each of FRB 121102 and FRB 20201124A also have not found periodicity. Periodograms of events with cosine-distributed random offsets as large as $\pm 0.6 P$ from a strict period $P$ would still reveal the underlying periodicity. The sensitivity of periodograms of long data series, such as bursts observed on multiple days, to slow frequency drifts is mitigated by considering individual observing sessions, and results are shown for FRB 121102. Models of repeating FRB without intrinsic periodicity are considered, as are models of apparently non-repeating FRB.
