Gravitational waves from extreme-mass-ratio inspirals using general parametrized metrics
Gravitational waves from extreme-mass-ratio inspirals using general parametrized metrics
复制标题
使用一般参数化度量从极端质量比吸气产生的引力波
DOI:
10.1103/physrevd.100.084055
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发表时间:
2018-12
影响因子:
5
通讯作者:
Yang Shu-Cheng
中科院分区:
文献类型:
--
作者:
Xin Shuo;Han Wen-Biao;Yang Shu-Cheng
Future space-borne interferometers will be able to detect gravitational waves at $10^{-3}$ to $10^{-1}$ Hz. At this band extreme-mass-ratio inspirals (EMRIs) can be promising gravitational wave sources. In this paper, we investigate possibility of testing Kerr hypothesis against a parametrized non-Kerr metric by matching EMRI signals. However, EMRIs from either equatorial orbits or inclined orbits suffer from the "confusion problem". Our results show that, within the time scale before radiation flux plays an important role, small and moderate deviations from the Kerr spacetime($|\delta_i|<1$) can be discerned only when spin parameter is high. In most cases, the EMRI waveforms related with a non-Kerr metric can be mimicked by the waveform templates produced with a Kerr black hole.
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DOI:
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The Astrophysical Journal
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发表时间:
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期刊:
The Astrophysical Journal
影响因子:
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