论文标题
银河中心和恒星簇的脉冲星的重力爆发辐射
Gravitational Burst Radiation from Pulsars in the Galactic centre and stellar clusters
论文作者
论文摘要
星系中心和球状簇的中心绕中间或超质量黑洞绕的脉冲星（PSR）称为极端质量比二进制（EMRB），已被确定为强场GR的精确探针。对于适当的轨道参数，其中一些系统也可能以“爆发”模式发射重力辐射。与电磁无线电计时信号结合使用这种爆发辐射的观察将允许在强场重力方向上进行多通电子天文学。在这项工作中，我们研究了来自这些PSR-EMRB的重力辐射，计算波形和SNR，并探索该GW对Pulsar Radio信号的影响。我们发现，对于典型的PSR-EMRB，应从银河系中心和恒星簇中心都可以检测到重力爆发辐射，并且该辐射不会有意义地影响Pulsar的时序信号，从而使PSR-EMRB能够保持“清洁”强球GR的测试。
Pulsars (PSRs) orbiting intermediate or supermassive black holes at the centre of galaxies and globular clusters are known as Extreme Mass Ratio Binaries (EMRBs) and have been identified as precision probes of strong-field GR. For appropriate orbital parameters, some of these systems may also emit gravitational radiation in a `burst-like' pattern. The observation of this burst radiation in conjunction with the electromagnetic radio timing signal would allow for multimessenger astronomy in strong-field gravitational regimes. In this work we investigate gravitational radiation from these PSR-EMRBs, calculating the waveforms and SNRs and explore the influence of this GW on the pulsar radio signal. We find that for typical PSR-EMRBs, gravitational burst radiation should be detectable from both the Galactic centre and the centre of stellar clusters, and that this radiation will not meaningfully affect the pulsar timing signal, allowing PSR-EMRB to remain `clean' test-beds of strong-field GR.
