Cosmological models with a dynamical dark energy field typically lead to a modified propagation of gravitational waves via an effectively time-varying gravitational coupling G (t) …
C Marín, J Poveda - Astrophysics and Space Science, 2021 - Springer
Higher order corrections are obtained for the perihelion precession in binary systems like OJ 287, Sagittarius A*-S2 and H1821+ 643 using both the Schwarzschild metric and the Kerr …