论文标题
毫秒脉冲星的轨道旋转动力学周围围绕一个巨大的黑洞，一般质量四极杆
Orbital spin dynamics of a millisecond pulsar around a massive black hole with an general mass quadrupole
论文作者
论文摘要
我们研究了一个千分之前（MSP）的旋转动力学，在带有一般质量四极杆的Kerr样巨型黑洞周围紧凑型轨道上。我们使用Mathisson-Papetrou-Dixon公式来计算MSP的轨道和自旋进化，这考虑了Pulsar的能量巨头张量在背景时空度量标准上的非线性相互作用。我们研究了MSP自旋和BH四极矩如何在脉冲星旋转轨道动力学中表现出来。我们讨论了这些自旋和轨道动力学在极端质量比二进制中的无线电时间的天体物理观察性含义，例如银河中心脉冲星。特别是，观察到爱因斯坦延迟和Roemer延迟的显着时机变化，以及对脉冲星脉冲轮廓的修改。
We investigate the spin dynamics of a millisecond pulsar (MSP) in compact orbit around a Kerr-like massive black hole with an general mass quadrupole. We use the Mathisson-Papetrou-Dixon formulation to compute the orbital and spin evolution of the MSP, accounting for the non-linear interaction of the pulsar's energy-momentum tensor on the background spacetime metric. We investigate how the MSP spin and BH quadrupole moment manifest in the pulsar spin-orbital dynamics. We discuss the astrophysical observational implications of these spin and orbital dynamics on the timing of a radio pulsar in an Extreme Mass Ratio Binary, e.g. a Galactic Centre pulsar. In particular, notable timing variations in the Einstein delay and Roemer delay are observed, along with modifications to the pulsar pulse profile.
