标题： 快速射电暴：极端质量比旋进的电磁对应物 显示英文标题

标题： Fast Radio Bursts: Electromagnetic Counterparts to Extreme Mass Ratio Inspirals

摘要： 最近的观测发现，一些重复的快速射电暴（FRBs）显示出法拉第旋转测量值（RMs）的大数值和复杂的变异。 包含超大质量黑洞（SMBH）和中子星（NS）的双星系统可以用来解释这种RM变化。 同时，这样的系统会产生低频引力波（GW）信号，这是三个拟议的空间引力波探测器：激光干涉空间天线（LISA）、天琴和太极的主要兴趣之一。 这些信号被称为极端质量比旋进（EMRIs）。 因此，FRBs可以作为EMRI信号的电磁（EM）对应体候选者。 在本信中，我们研究了这种双星系统中的EMRI信号，在最乐观的情况下，LISA和天琴可以探测到$z\sim0.04$的距离。 假设FRB产生的宇宙梳模型，总事件率可以高达$\sim1$ Gpc$^{-3}$ yr$^{-1}$。 与FRBs相关的EMRI信号可用于揭示FRBs的前身。 它也是一种新型的标准 sirens，可以作为独立的宇宙学探针。 显示英文摘要

摘要： Recent observations discovered that some repeating fast radio bursts (FRBs) show a large value and complex variations of Faraday rotation measures (RMs). The binary systems containing a supermassive black hole (SMBH) and a neutron star (NS) can be used to explain such RM variations. Meanwhile, such systems produce low-frequency gravitational wave (GW) signals, which are one of the primary interests of three proposed space-based GW detectors: the Laser Interferometer Space Antenna (LISA), Tianqin and Taiji. These signals are known as extreme mass ratio inspirals (EMRIs). Therefore, FRBs can serve as candidates of electromagnetic (EM) counterparts for EMRI signals. In this letter, we study the EMRI signals in this binary system, which can be detected up to $z\sim0.04$ by LISA and Tianqin for the most optimistic case. Assuming the cosmic comb model for FRB production, the total event rate can be as high as $\sim1$ Gpc$^{-3}$ yr$^{-1}$. EMRI signals associated with FRBs can be used to reveal the progenitor of FRBs. It is also a new type of standard siren, which can be used as an independent cosmological probe.