论文标题
脉冲星二进制中的一个高度可变的磁化环境，类似于快速无线电爆发
A Highly Variable Magnetized Environment in a Pulsar Binary resembling Fast Radio Bursts
论文作者
论文摘要
快速无线电爆发（FRB）是未知来源的短而强烈的静脉外无线电爆发。最近的极化研究表明，重复的FRB的明显部分表现出法拉第旋转度量（RM）的不规则短期变化。此外，在至少一个FRB中继器中可以看到罕见传播效应（例如法拉第转换和两极化衰减）的证据。他们共同提出了一个高度可变的磁性绕线环境。在本文中，我们报告了球状脉冲星二进制系统PSR B1744-24A中的类似行为。我们观察到RM的不规则快速变化在随机轨道阶段的两个符号以及当脉冲星发射靠近伴侣时的圆极化的轮廓变化。后者为法拉第转换和循环极化衰减提供了有力的证据。 PSR B1744-24A和一些FRB中继器之间的这些相似之处，以及可能的二元生产的两个主动中继器的长期周期性，以及在球状群集中发现附近的FRB，在那里Pulsar二进制文件很常见，所有这些都表明FRB的某些部分都有二进制伴侣。
Fast radio bursts (FRBs) are short, intense extragalactic radio bursts of unknown origin. Recent polarimetric studies have shown that a noticeable fraction of the repeating FRBs display irregular, short-time variations of the Faraday rotation measure (RM). Moreover, evidence for rare propagation effects such as Faraday conversion and polarized attenuation is seen in at least one FRB repeater. Together, they suggest a highly variable magneto-active circum-burst environment. In this paper, we report similar behavior in a globular cluster pulsar binary system PSR B1744-24A. We observe irregular fast changes of RM with both signs at random orbital phases as well as profile changes of the circular polarization when the pulsar emission passes close to the companion. The latter provides strong evidence for Faraday conversion and circularly polarized attenuation. These similarities between PSR B1744-24A and some FRB repeaters, as well as the possible binary-produced long-term periodicity of two active repeaters, and the discovery of a nearby FRB in a globular cluster, where pulsar binaries are common, all suggest that some fraction of FRBs have binary companions.
