Gravitational self-force correction to the binding energy of compact binary systems.
Gravitational self-force correction to the binding energy of compact binary systems.
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对致密二元系统结合能的引力自力修正。
DOI：
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发表时间：
2011
影响因子：
8.6
通讯作者：
A. Buonanno
中科院分区：
文献类型：
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作者：
A. Le Tiec;E. Barausse;A. Buonanno
利用双黑洞力学第一定律，计算了两个非自旋致密天体在频率为Ω的圆轨道上运动时的结合能E和总角动量J。通过最小化E（Ω），我们恢复了史瓦西最内层稳定圆轨道由引力自作用力的保守部分引起的精确频移。将我们的坐标不变关系E（J）的结果与最近从可比较质量的非自旋黑洞双星的数值模拟中获得的结果进行比较，我们发现即使在强场区域也有非常好的一致性。我们的研究结果证实，微扰计算的有效性域可能会远远超出极端的质量比限制。
Using the first law of binary black-hole mechanics, we compute the binding energy E and total angular momentum J of two nonspinning compact objects moving on circular orbits with frequency Ω, at leading order beyond the test-particle approximation. By minimizing E(Ω) we recover the exact frequency shift of the Schwarzschild innermost stable circular orbit induced by the conservative piece of the gravitational self-force. Comparing our results for the coordinate-invariant relation E(J) to those recently obtained from numerical simulations of comparable-mass nonspinning black-hole binaries, we find a remarkably good agreement, even in the strong-field regime. Our findings confirm that the domain of validity of perturbative calculations may extend well beyond the extreme mass-ratio limit.
影响因子：
5
作者：
Niels Warburton;S. Akçay;L. Barack;J. Gair;N. Sago
通讯作者：
Niels Warburton;S. Akçay;L. Barack;J. Gair;N. Sago