Constraints on modified gravity models from white dwarfs

S Banerjee, S Shankar, TP Singh - Journal of Cosmology and …, 2017 - iopscience.iop.org
Modified gravity theories can introduce modifications to the Poisson equation in the
Newtonian limit. As a result, we expect to see interesting features of these modifications …

Standard sirens as a novel probe of dark energy

WJ Wolf, M Lagos - Physical Review Letters, 2020 - APS
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) …

Spin contribution to the perihelion advance in binary systems like OJ 287: higher order corrections

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 …