论文标题
周期性快速无线电爆发作为外乳肠类行皮带的探测
Periodic Fast Radio Bursts as a Probe of Extragalactic Asteroid Belts
论文作者
论文摘要
Chime/FRB协作团队最近报道了重复快速无线电爆发（FRB）180916.J0158+65的周期性活动。 28来自该来源的爆发不仅显示出$ \ sim16 $日期，其主动阶段为$ \ sim 4.0 $天，而且还显示出差异能量分布的破损功率法。在本文中，我们建议FRB 180916.J0158+65个样式的周期性FRB将基于我们先前提到的Pulsar-EAB影响模型提供独特的杂质小行星皮带（EAB）探针，其中重复由一个旧的，缓慢的，缓慢的，适度的pulsartiped trake trake trake a Brange a Broking a Broking a Broking a Broking a Broking a Broking a Brbs产生。这两个对象形成二元，因此观察到的时期实际上是轨道周期。我们表明，该模型可用于很好地解释FRB 180916.J0158+65的所有观察到的数据。此外，我们限制了EAB的物理特性，并发现（1）EAB的外部半径至少比太阳系中的类似物小的数量级要小，（2）EAB小星形在小直径（大直径（大直径）（大直径）的差异分布比太阳能系统的质量较浅（陡峭）比太阳系构造的小小的小小的对象和（3）套件。
The periodic activity of repeating fast radio burst (FRB) 180916.J0158+65 was recently reported by the CHIME/FRB Collaboration team. 28 bursts from this source not only show a $\sim16$-day period with an active phase of $\sim 4.0$ days but also exhibit a broken power law in differential energy distribution. In this paper, we suggest that FRB 180916.J0158+65-like periodic FRBs would provide a unique probe of extragalactic asteroid belts (EABs), based on our previously-proposed pulsar-EAB impact model, in which repeating FRBs arise from an old-aged, slowly-spinning, moderately-magnetized pulsar traveling through an EAB around another stellar-mass object. These two objects form a binary and thus the observed period is in fact the orbital period. We show that this model can be used to well interpret all of the observed data of FRB 180916.J0158+65. Furthermore, we constrain the EAB's physical properties and find that (1) the outer radius of the EAB is at least an order of magnitude smaller than that of its analogue in the solar system, (2) the differential size distribution of the EAB's asteroids at small diameters (large diameters) is shallower (steeper) than that of solar-system small objects, and (3) the two belts have a comparable mass.
