Journée des groupes de travail "Formes d'onde" et “Tests de la relativité générale et théories alternatives” du GdR Ondes Gravitationnelles

Radiation-Reaction Correction to Scattering Binary Dynamics at Next-to-Leading Post-Newtonian Order

27 mai 2026, 10:45

30m

200/0-Auditorium - Auditorium P. Lehmann (IJCLab)

Orateur

Sara Rufrano Aliberti (Scuola Superiore Meridionale)

Description

Radiation-reaction force encodes dissipative effects in a binary system emitting gravitational waves. Within the post-Newtonian framework, radiation-reaction terms enter the equations of motion starting at 2.5PN order and affect the system’s dynamics accordingly. These effects can be incorporated as corrections to the quasi-Keplerian orbital parameters in the center-of-mass frame. In this presentation, I will discuss the Lagrange method of variation of constants that we used to determine the radiation-reaction corrections for the quasi-hyperbolic orbit at 3.5PN order.

Documents de présentation

Workshop_Paris.pdf