Multi-messenger approaches to binary supermassive black holes in the ‘continuous-wave’ regime
Multi-messenger approaches to binary supermassive black holes in the ‘continuous-wave’ regime
复制标题
DOI：
10.1088/0264-9381/30/22/224013
复制
发表时间：
2013-08
影响因子：
3.5
通讯作者：
S. Burke-Spolaor
中科院分区：
文献类型：
--
作者：
S. Burke-Spolaor
脉冲星计时阵列对≪-1 PC轨道分离的超大质量黑洞双星引力波非常敏感。尽管它们是研究星系演化、合并动力学和活动核形成的中心人物，但目前观测到的此类系统很少。我们回顾了通过被认为与星系合并和后期双星演化有关的电磁辐射过程来探测SMBH双星的前景。然后，我们讨论了这些系统的联合脉冲星计时和电磁研究的科学目标，包括促进双星参数估计，识别引力波发射体的银河系主机，以及合并动力学和宇宙学的相关研究。即将推出的高精度计时阵列与国际脉冲星计时阵列和平方公里阵列的结合使用，再加上正在进行的确定SMBH双星活动的电磁观测活动，为在不久的将来进行多信使天体物理学提供了极大的可能性。
Pulsar timing arrays are sensitive to gravitational waves from supermassive black hole (SMBH) binaries at orbital separations of ≪1 pc. There is currently an observational paucity of such systems, although they are central figures in studies of galaxy evolution, merger dynamics, and active nucleus formation. We review the prospects of detecting SMBH binaries through electromagnetic radiative processes thought to be associated with galaxy mergers and late-stage binary evolution. We then discuss the scientific goals of joint pulsar timing and electromagnetic studies of these systems, including the facilitation of binary parameter estimation, identifying galactic hosts of gravitational wave emitters, and relevant studies of merger dynamics and cosmology. The use of upcoming high-precision timing arrays with the International pulsar timing array and the square kilometre array, combined with ongoing electromagnetic observing campaigns to identify active SMBH binaries, provide generous possibilities for multi-messenger astrophysics in the near future.