Energy flux and waveforms by coalescing spinless binary system in effective one-body theory  

作　　者：Sheng Long Weike Deng Jiliang Jing 

机构地区：[1]Department of Physics,Key Laboratory of Low Dimensional Quantum Structures and Quantum Control of Ministry of Education,Synergetic Innovation Center for Quantum Effects and Applications,Hunan Normal University,Changsha 410081,China [2]Center for Gravitation and Cosmology,College of Physical Science and Technology,Yangzhou University,Yangzhou 225009,China

出　　处：《Science China(Physics,Mechanics & Astronomy)》2024年第6期58-68,共11页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.12035005);the National Key Research and Development Program of China(Grant No.2020YFC2201400)。

摘　　要：We present a study on the energy radiation rate and waveforms of the gravitational wave generated by coalescing spinless binary systems up to the third post-Minkowskian approximation in the effective one-body theory.To derive an analytical expansion of the null tetrad components of the gravitational perturbed Weyl tensorΨ4in the effective spacetime,we utilize the method proposed by Sasaki et al.During this investigation,we discover more general integral formulas that provide a theoretical framework for computing the results in any order.Subsequently,we successfully compute the energy radiation rate and waveforms of the gravitational wave,which include the results of the Schwarzschild case and the correction terms resulting from the dimensionless parameters a2and a3in the effective metric.

关 键 词：post-Minkowskian approximation effective one-body theory gravitational waveform template 

分 类 号：P142.84[天文地球—天体物理]