Gravitational perturbations and metric reconstruction: Method of extended homogeneous solutions applied to eccentric orbits on a Schwarzschild black hole
We calculate the gravitational perturbations produced by a small mass in eccentric orbit about a much more massive Schwarzschild black hole and use the numerically computed perturbations to solve for the metric. The calculations are initially made in the frequency domain and provide Fourier-harmonic modes for the gauge-invariant master functions that satisfy inhomogeneous versions of the Regge-Wheeler and Zerilli equations. These gravitational master equations have specific singular sources containing both delta function and derivative-of-delta function terms. We demonstrate in this paper successful application of the method of extended homogeneous solutions, developed recently by Barack, Ori, and Sago, to handle source terms of this type. The method allows transformation back to the time domain, with exponential convergence of the partial mode sums that represent the field. This rapid convergence holds even in the region of $r$ traversed by the point mass and includes the time-dependent location of the point mass itself. We present numerical results of mode calculations for certain orbital parameters, including highly accurate energy and angular momentum fluxes at infinity and at the black hole event horizon. We then address the issue of reconstructing the metric perturbation amplitudes from the master functions, the latter being weak solutions of a particular form to the wave equations. The spherical harmonic amplitudes that represent the metric in Regge-Wheeler gauge can themselves be viewed as weak solutions. They are in general a combination of (1) two differentiable solutions that adjoin at the instantaneous location of the point mass (a result that has order of continuity $C^{-1}$ typically) and (2) (in some cases) a delta function distribution term with a computable time-dependent amplitude.
Confirming and improving post-Newtonian and effective-one-body results from self-force computations along eccentric orbits around a Schwarzschild black hole
我们解析计算，通过6.5后牛顿秩序，二阶的Detweiler-Barack-Sago规范不变红移函数的偏心率部分的小质量在偏心轨道上围绕史瓦西黑洞。利用力学第一定律求解偏心轨道[A. Le Tiec，Phys. Rev. D { \bf 92}，084021（2015）]我们将我们的结果转录为有效单体形式主义的第二径向势的相应准确知识[A. Buonanno和T. Damour，Phys. Rev. D { \bf 59}，084006（1999）]。我们比较了我们新获得的分析信息，几个不同的数值自作用力数据，并发现很好的协议，估计误差范围内。我们还获得，第一次，独立的分析检查最近导出的，比较质量的第四后牛顿阶动力学[T。Damour，P. Jaranowski和G. Shaefer，Phys. Rev. D { \bf 89}，064058（2014）]。
Analytic self-force calculations in the post-Newtonian regime: eccentric orbits on a Schwarzschild background
本文提出了一种求解一阶后牛顿（PN）展开场方程的方法。我们的计算推广了Bini和Damour以及随后Kavanagh等人的工作，考虑史瓦西背景下的偏心轨道。我们推导出所有$\ell$模式的粒子位置的延迟度规扰动的表达式。我们发现，尽管第一次出现，Regge-Wheeler规范度规扰动是$C^0$在所有$\ell$的粒子。作为第一次使用我们的解决方案，我们计算规范不变量$\langle U \rangle$通过4PN，同时扩大偏心率通过$e^{10}$。通过预测每个PN阶的$e\to 1$奇异行为，我们大大提高了我们的结果的精度为大$e$。我们使用$\langle U \rangle$通过$e^{10}$和在质量比的线性顺序找到有效的单体势$\hat Q$的4PN贡献。
Determination of new coefficients in the angular momentum and energy fluxes at infinity to 9PN for eccentric Schwarzschild extreme-mass-ratio inspirals using mode-by-mode fitting
Analytical calculation of self-force effects on a scalar particle in an eccentric orbit around a Schwarzschild black hole
Scuola Superiore Meridionale（南方高等学院）；INFN, Sezione di Napoli（意大利国家核物理研究所那不勒斯分部）；Dipartimento di Fisica ”E. Pancini”, Università di Napoli “Federico II”（那不勒斯费德里科二世大学E. Pancini物理系）；Max Planck Institute for Gravitational Physics (Albert Einstein Institute)（马克斯·普朗克引力物理学研究所（爱因斯坦研究所））
Metric perturbations from eccentric orbits on a Schwarzschild black hole: I. Odd-parity Regge-Wheeler to Lorenz gauge transformation and two new methods to circumvent the Gibbs phenomenon
Spin-orbit precession along eccentric orbits: improving the knowledge of self-force corrections and of their effective-one-body counterparts
通过后牛顿第九阶计算了自旋致密体绕Schwarzschild黑洞沿微偏心轨道的自旋轨道进动的（一阶）引力自作用力修正，改进了Kavanagh等人最近的结果。修订版本\ D { \bf 96}，064012（2017）。]然后将这些信息转换成相应的连续单体对应物，从而确定陀螺重磁比$g_{S*}$中的几个新的后牛顿项。
High-order post-Newtonian expansion of the generalized redshift invariant for eccentric-orbit, equatorial extreme-mass-ratio inspirals with a spinning primary
Analytic post-Newtonian expansion of the energy and angular momentum radiated to infinity by eccentric-orbit non-spinning extreme-mass-ratio inspirals to 19PN
Analytical Fluxes from Generic Schwarzschild Geodesics
Racah Institute of Physics, Hebrew University of Jerusalem（希伯来大学拉卡物理研究所）；School of Mathematics and Statistics, University College Dublin（都柏林大学学院数学与统计学院）
Probing the gravity of a Schwarzschild black hole in the presence of a cloud of strings with EMRIs
Harbin Institute of Technology（哈尔滨工业大学）；University of Tashkent for Applied Sciences（塔什干应用科学大学）；Tashkent State Technical University（塔什干国立技术大学）；New Uzbekistan University（新乌兹别克斯坦大学）；National University of Uzbekistan（乌兹别克斯坦国立大学）
Gravitational waves from compact binaries inspiralling along post-Newtonian accurate eccentric orbits: Data analysis implications
沿偏心轨道旋转的致密双星是地基激光干涉仪的引力波源。我们探索的损失，在事件发生率时，从紧凑的二进制文件，沿着后牛顿精确偏心轨道与某些明显的非最佳搜索模板的灵感搜索GW。对于本分析，具有2.5后牛顿精确轨道演化的GW信号按照[T. Damour，A. Gopakumar和B. R. Iyer，Phys. Rev. \textbf{70}，064028（2004）]。我们证明了搜索模板，模型在规范不变的方式GWs从紧凑的二进制inspirling qudrupolar辐射反应下沿2 PN精确的圆形轨道是非常有效的捕捉我们有点现实的GW信号。然而，基于绝热、完全绝热和规范依赖的完全非绝热近似的三种类型的搜索模板在[P. Ajith，B. R.伊耶角A. K. Robinson和B. S. Sathyaprakash，%``A new class of post-Newtonian approximants to the dynamics of inspiralling compact binaries：Test-mass in the Schwarzschild spacetime，'' Phys. Rev. D { \bf 71}，044029（2005）]，与四极辐射反应下的圆形内旋相关，发现在捕获上述偏心信号方面效率低下。我们的结论是，将需要进一步的调查，以探测各种类型的PN准确的…
Encounter between an extended hyperelastic body and a Schwarzschild black hole with quadrupole-order effects
North Carolina State University（北卡罗来纳州立大学）；University of Idaho（爱达荷大学）；University of North Carolina, Chapel Hill（北卡罗来纳大学教堂山分校）；University College Dublin（都柏林大学学院）
