We present the first analytic computation of the Detweiler-Barack-Sago gauge-invariant redshift function for a small mass in {\it eccentric} orbit around a {\it spinning} black hole. Our results give the redshift contributions that mix eccentricity and spin effects, through second order in eccentricity, second order in spin parameter, and the eight-and-a-half post-Newtonian order.
Gravitational-wave amplitudes for compact binaries in eccentric orbits at the third post-Newtonian order: Tail contributions and post-adiabatic corrections
Large-Eccentricity Asymptotics and Fast Analytic Approximation for Fourier modes of Post-Newtonian Eccentric Waveforms
Instituto de Física Téorica UAM-CSIC, Universidad Autónoma de Madrid(马德里自治大学理论物理研究所);Beijing Normal University(北京师范大学);Hangzhou Institute for Advanced Study, UCAS(中国科学院大学杭州高等研究院)
Gravitational waves radiated during binary black hole coalescence is a perfect probe for studying the characteristics of strong gravity. Advanced techniques for creating numerical relativity substitute models for eccentric binary black hole systems are presumed to become more crucial in existing and anticipated gravitational wave detectors. The imprint on the observation data of the gravitational wave emitted by the binary coalescence enhances the two body system studies. The aim of this study is to present an overview of the change in characteristics behaviours of hierarchical massive astroph…
We use equations of motion containing gravitational radiation-reaction terms through 4.5 post-Newtonian order to calculate the late-time eccentricities of inspiraling binary systems of non-spinning compact bodies as they cross the detection threshold of ground-based gravitational-wave interferometers. The initial eccentricities can be as large as 0.999. We find that the final eccentricities are systematically smaller than those predicted by the leading quadrupole approximation, by as much as 30 percent for a 300 solar mass binary crossing the LIGO/Virgo detection threshold at 10 Hz, or eight p…
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)]。
Post-Newtonian theory-inspired framework for characterizing eccentricity in gravitational waveforms
Kavli Institute for Theoretical Physics, University of California Santa Barbara(加州大学圣塔芭芭拉分校卡弗里理论物理研究所);Theoretical AstroPhysics Including Relativity and Cosmology, California Institute of Technology(加州理工学院理论天体物理学(含相对论与宇宙学));Department of Physics, University of California at Santa Barbara(加州大学圣塔芭芭拉分校物理系);International Centre for Theoretical Sciences, Tata Institute of Fundamental Research(塔塔基础研究院国际理论科学中心)
We calculate the eccentricity dependence of the high-order post-Newtonian (PN) series for the generalized redshift invariant $\langle u^t \rangle_τ$ for eccentric-orbit extreme-mass-ratio inspirals on a Schwarzschild background. These results are calculated within first-order black hole perturbation theory (BHPT) using Regge-Wheeler-Zerilli (RWZ) gauge. Our \textsc{Mathematica} code is based on a familiar procedure, using PN expansion of the Mano-Suzuki-Takasugi (MST) analytic function formalism for $l$ modes up to a certain maximum and then using a direct general-$l$ PN expansion of the RWZ e…
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…
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。
We calculate the eccentricity dependence of the high-order post-Newtonian (PN) expansion of the spin-precession invariant $ψ$ for eccentric-orbit extreme-mass-ratio inspirals with a Schwarzschild primary. The series is calculated in first-order black hole perturbation theory through direct analytic expansion of solutions in the Regge-Wheeler-Zerilli formalism, using a code written in \textsc{Mathematica}. Modes with small values of $l$ are found via the Mano-Suzuki-Takasugi (MST) analytic function expansion formalism for solutions to the Regge-Wheeler equation. Large-$l$ solutions are found by…
We use the frequency and time domain Teukolsky formalism to calculate gravitational-wave fluxes from a spinning body on a bound eccentric equatorial orbit around a Kerr black hole. The spinning body is represented as a point particle following the pole-dipole approximation of the Mathisson-Papapetrou-Dixon equations. Reformulating these equations we are not only able to find the trajectory of a spinning particle in terms of its constants of motion, but also to provide a method to calculate the azimuthal and the radial frequency of this trajectory. Using these orbital quantities, we introduce t…
High-order post-Newtonian expansion of the generalized redshift invariant for eccentric-orbit, equatorial extreme-mass-ratio inspirals with a spinning primary
Spherical harmonic modes of gravitational waveforms for inspiraling compact binaries in eccentric orbits from post-Newtonian (PN) theory accurate to third post-Newtonian order, and those extracted from numerical relativity (NR) simulations for binary black holes (BBHs) are compared. We combine results from the two approaches (PN and NR) to construct time-domain hybrid waveforms that describe the complete evolution of BBH mergers through inspiral-merger-ringdown (IMR) stages. These hybrids are then used in constructing a fully analytical dominant mode ($\ell$=2, $|m|$=2) eccentric IMR model. A …
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。
In a recent paper we showed that for eccentric-orbit extreme-mass-ratio inspirals the analytic forms of the leading-logarithm energy and angular momentum post-Newtonian (PN) flux terms (radiated to infinity) can, to arbitrary PN order, be determined by sums over the Fourier spectrum of the Newtonian quadrupole moment. We further showed that an essential part of the eccentricity dependence of the related subleading-logarithm PN sequences, at lowest order in the symmetric mass ratio $ν$, stems as well from the Newtonian quadrupole moment. Once that part is factored out, the remaining eccentricit…