Gravitational radiation contributions to the two-body scattering angle
Gabriel Luz Almeida, Stefano Foffa, Riccardo Sturani
Abstract
We compute the contribution to the two-body scattering angle of a specific class of interactions involving the exchange of gravitational radiative degrees of freedom, including the nonlinear memory process and square of radiation reaction effects. Our computation is performed directly from the equations of motion, thus computing the overall effect of both conservative and dissipative processes. Such contributions provide in principle the last missing ingredients to compute the scattering angle at fifth post-Newtonian and fourth post-Minkowskian order.
Topics & Concepts
Dissipative systemPhysicsScatteringRadiative transferClassical mechanicsGravitationComputationGravitational waveDegrees of freedom (physics and chemistry)Square (algebra)Nonlinear systemRadiationQuantum mechanicsComputer scienceMathematicsGeometryAlgorithmPulsars and Gravitational Waves ResearchCosmology and Gravitation TheoriesAstrophysical Phenomena and Observations