Résumé / Abstract Journal-club_GReCO

Séminaire / Seminar GReCO

« Compact binary systems in scalar-tensor theories  »

Laura Bernard
Centro Multidisciplinar de Astrofísica, Instituto Superior Técnico (Lisbonne, Portugal)

The observations of gravitational waves from coalescing compact binary systems allow us to test gravity in its strong field regime. In order to constrain deviations from general relativity, one has to build template waveforms for alternative theories of gravity. In this talk, I will present a post-Newtonian Lagrangian approach adapted to the specificities of scalar-tensor theories. I will derive the equations of motion of a compact binary system at the 3PN order in harmonic coordinates. This result is primordial in order to compute the scalar and gravitational waveforms at 2PN order.
lundi 12 mars 2018 - 11:00
Salle des séminaires Évry Schatzman
Institut d'Astrophysique de Paris
Pages web du séminaire / Seminar's webpage