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引用次数: 0
摘要
探测超大质量黑洞周围的环境和检验广义相对论是极质量比吸积物(EMRIs)的重要应用。如何有效地描述吸气的各种 "脏 "影响,如暗物质、气体、偶极子辐射和电磁相互作用,仍然是一个挑战。在这项研究中,我们发现了非均相 Teukolsky 方程渐近解的内在线性。在此基础上,我们完全解耦了能量通量和波形中的扰动因子和背景时空因子。利用新的解耦形式,可以方便地计算在克尔时空中非大地运动的 EMRI 波形。这将有助于解析超大质量黑洞周围的环境(包括气体、场、暗物质、电磁相互作用),并检验广义相对论。
General formalism for dirty extreme-mass-ratio inspirals
Detecting the environment around the supermassive black holes and tests of general relativity are important applications of extreme-mass-ratio inspirals (EMRIs). There is still a challenge to efficiently describe various “dirty” impacts on the inspirals, such as dark matter, gas, dipole radiation, and electromagnetic interaction. In this study, we find the inherent linearity of the asymptotic solution of the inhomogeneous Teukolsky equation. On the basis of this property, we completely decouple the factors of the perturber and the background spacetime in the energy fluxes and waveforms. With the new decoupling form, the waveforms of EMRIs with non-geodesic motion in Kerr spacetime can be conveniently calculated. This will help to resolve the environment (including gas, field, dark matter, electromagnetic interaction) around supermassive black holes and test general relativity.
期刊介绍:
Science China Physics, Mechanics & Astronomy, an academic journal cosponsored by the Chinese Academy of Sciences and the National Natural Science Foundation of China, and published by Science China Press, is committed to publishing high-quality, original results in both basic and applied research.
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