论文标题
重复二进制中子星星合并快速无线电爆发的罕见性
The rarity of repeating fast radio bursts from binary neutron star mergers
论文作者
论文摘要
快速无线电爆发（FRB）是射电频率下毫秒毫秒持续时间的射频时出现的明亮脉冲。从观察上讲，FRB可以分为两类，重复FRB和非重复的FRB。目前，已经发现了二十个重复的FRB，其物理起源未知。第一次重复的FRB 121102的定位以及发现了相关的持续无线电源支持，即FRB由年轻的毫秒磁铁提供动力，这可以由大型恒星或二进制中子星的核心核对形成。这两个地层通道可以通过二进制中子星合并产生的重力波来区分。我们首先计算加拿大氢强度映射实验（Chime）观察到的重复FRB的局部形成速率的下限。然后，我们表明，仅二进制中子星星合并的年轻磁场就产生了重复的frb的一小部分（$ 6 \％$），这是通过高级LIGO/VIRGO REGO/VIRGO重力探测器的第三次观察跑（O3）基于重力波检测的。因此，我们认为，重复的FRB更有可能是由新生儿从巨大恒星的核心收获而不是来自二进制中子星星合并的磁铁的新生儿产生的。
Fast radio bursts (FRBs) are extragalactic, bright pulses of emission at radio frequency with milliseconds duration. Observationally, FRBs can be divided into two classes, repeating FRBs and non-repeating FRBs. At present, twenty repeating FRBs have been discovered with unknown physical origins. Localization of the first repeating FRB 121102 and discovery of an associated persistent radio source support that FRBs are powered by young millisecond magnetars, which could be formed by core-collapses of massive stars or binary neutron stars mergers. These two formation channels can be distinguished by gravitational waves generated by binary neutron stars mergers. We first calculate the lower limit of the local formation rate of repeating FRBs observed by the Canadian Hydrogen Intensity Mapping Experiment (CHIME) . Then we show that only a small fraction ($6\%$) of repeating FRBs is produced by young magnetars from binary neutron star mergers, basing on the gravitational wave detections by the third observing run (O3) of Advanced LIGO/Virgo gravitational-wave detectors. Therefore, we believe that repeating FRBs are more likely produced by the magnetars newborn from the core-collapses of massive stars rather than the magnetars from the binary neutron stars mergers.
