论文标题
持续的发射光度和快速无线电爆发的旋转度量是否相关？
Are persistent emission luminosity and rotation measure of fast radio bursts related?
论文作者
论文摘要
快速无线电爆发（FRB）的物理起源仍然未知。 FRB来源的多波大长度和极化观察将有助于诊断其祖细胞和环境。到目前为止，只有第一个重复的源FRB 121102在空间上似乎与持续的无线电发射是一致的。它的爆发还具有很大的Faraday旋转度量（RM）的值，即$ | {\ rm rm} | \ sim10^5〜 {\ rm rad〜m^{ - 2}} $。我们表明，如果观察到的RM主要来自持续的发射区域，则理论上从理论上讲，RM和FRB源持久源的光度之间应该存在简单的关系。 FRB 121102遵循此关系，因为持续发射区域中的磁场高度有序，并且为持续发射的相对论电子的数量与对RM有助于RM的非相关电子相媲美。来自所有其他本地化FRB源的持久排放来源的非检测与它们相对较小的RMS一致（$ \ \ weft | {\ rm rm rm} \ right | \ right | \ lysesim {\ rm a〜lif lig} \ lif times100〜基于这张图片，大多数没有大RM的FRB不应该与明亮的持续来源有关。
The physical origin of fast radio bursts (FRBs) is still unknown. Multiwavelength and polarization observations of an FRB source would be helpful to diagnose its progenitor and environment. So far only the first repeating source FRB 121102 appears to be spatially coincident with a persistent radio emission. Its bursts also have very large values of the Faraday rotation measure (RM) i.e., $|{\rm RM}|\sim10^5~{\rm rad~m^{-2}}$. We show that theoretically there should be a simple relation between RM and the luminosity of the persistent source of an FRB source if the observed RM mostly arises from the persistent emission region. FRB 121102 follows this relation given that the magnetic field in the persistent emission region is highly ordered and that the number of relativistic electrons powering the persistent emission is comparable to that of non-relativistic electrons that contribute to RM. The non-detections of persistent emission sources from all other localized FRB sources are consistent with their relatively small RMs ($\left|{\rm RM}\right|\lesssim{\rm a~few}\times100~{\rm rad~m^{-2}}$) according to this relation. Based on this picture, the majority of FRBs without a large RM are not supposed to be associated with bright persistent sources.
