论文标题
重复来自中子恒星二进制的快速无线电爆发：多频段和多理智的机会
Repeating Fast Radio Bursts from Neutron Star Binaries: Multi-band and Multi-messenger Opportunities
论文作者
论文摘要
最近的观察结果表明，磁铁通常存在于合并紧凑的二进制文件和至少一部分快速无线电爆发（FRB）中，这是通过磁性活性来源的。很自然地推测一类合并的中子恒星二进制文件可能具有FRB发射器。在这项工作中，我们研究了这些二进制文件的观察方面，尤其是那些具有FRB中继器的观测方面，这是射电望远镜和基于地面的引力波探测器的多频段和多通信器观察目标，因为前望远镜可以在更早的Insper ne Inspece中比后者更早地探测系统。我们表明，紧凑型二进制文件中FRB中继器的观察在固定二进制自旋动力学，限制状态的中子星方程，探测FRB生产机制以及超出标准物理学以外的测试方面具有显着优势。作为原则的证明，我们研究了源自前中子星星二进制二进制的FRB脉冲的几个模拟观察结果，我们发现，使用仅使用FRB到达的信息，该系统的固有参数（包括恒星质量，旋转，旋转和四倍的力矩）可以用高精度和远程依赖的模式来测量。 The measurement of stellar masses (with an error of $\mathcal{O}(10^{-6}-10^{-5})$) and quadrupole moments (with an error of $\mathcal{O}(1\%-10\%)$) may be an unprecedented discriminator of nuclear equations of state in neutron stars.此外，我们发现该二进制的多频段和多通信观测值将对重力的替代理论以及超出标准模型的替代理论敏感，例如，动态的Chern-simons重力和轴轴化场与物质耦合。
Recent observations indicate that magnetars may commonly reside in merging compact binaries and at least part of fast radio bursts (FRBs) are sourced by magnetar activities. It is natural to speculate that a class of merging neutron star binaries may have FRB emitters. In this work, we study the observational aspects of these binaries - particularly those with FRB repeaters, which are promising multi-band and multi-messenger observation targets of radio telescopes and ground based gravitational wave detectors as the former telescopes can probe the systems at a much earlier stage in the inspiral than the latter. We show that observations of FRB repeaters in compact binaries have a significant advantage in pinning down the binary spin dynamics, constraining neutron star equation of state, probing FRB production mechanisms, and testing beyond standard physics. As a proof of principle, we investigate several mock observations of FRB pulses originating from pre-merger neutron star binaries, and we find that using the information of FRB arriving times alone, the intrinsic parameters of this system (including the stellar masses, spins, and quadrupole moments) can be measured with high precision, and the angular dependence of the FRB emission pattern can also be well reconstructed. The measurement of stellar masses (with an error of $\mathcal{O}(10^{-6}-10^{-5})$) and quadrupole moments (with an error of $\mathcal{O}(1\%-10\%)$) may be an unprecedented discriminator of nuclear equations of state in neutron stars. In addition, we find the multi-band and multi-messenger observations of this binary will be sensitive to alternative theories of gravity and beyond standard models, e.g., dynamical Chern-Simons gravity and axion field that is coupled to matter.
