Oscillations in the extreme mass-ratio inspiral gravitational wave phase correction as a probe of a reflective boundary of the central black hole
Oscillations in the extreme mass-ratio inspiral gravitational wave phase correction as a probe of a reflective boundary of the central black hole
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DOI：
10.1103/physrevd.104.064009
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发表时间：
2021-06
影响因子：
5
通讯作者：
N. Sago;Takahiro Tanaka
中科院分区：
文献类型：
--
作者：
N. Sago;Takahiro Tanaka
我们讨论由地平线边界条件被反射边界条件取代的奇异物体组成的双星的引力辐射引起的能量损失。我们的重点是极端质量比螺旋，其中中心较重的黑洞被奇异的致密物体取代。我们表明，在这种情况下，能量损失率的调制取决于演化的轨道频率，并导致引力波相位演化的两种不同类型的修改；振荡部分直接对应于能量通量的调制，非振荡部分来自调制的二次阶。这种修改可能足够大，足以用未来的星载探测器进行探测。
We discuss the energy loss due to gravitational radiation of binaries composed of exotic objects whose horizon boundary conditions are replaced with reflective ones. Our focus is on the extreme mass-ratio inspirals in which the central heavier black hole is replaced with an exotic compact object. We show, in this case, a modulation of the energy loss rate depending on the evolving orbital frequency occurs and leads to two different types of modifications to the gravitational wave phase evolution; the oscillating part directly corresponding to the modulation in the energy flux, and the non-oscillating part coming from the quadratic order in the modulation. This modification can be sufficiently large to detect with future space-borne detectors.