We review the tests of general relativity that will become possible with space-based
gravitational-wave detectors operating in the∼ 10− 5− 1 Hz low-frequency band. The …

Horizon-scale images of black holes (BHs) and their shadows have opened an
unprecedented window onto tests of gravity and fundamental physics in the strong-field …

We study the strong gravitational lensing effect around rotating black holes in different
gravity theories. By calculating the deflection angle of strong gravitational lensing, we …

The Gaia eDR3 catalogue has recently been used to study statistically the internal
kinematics of wide binary populations using relative velocities of the two component stars, Δ …

The exploration of the low acceleration a< a 0 regime, where a 0= 1.2× 10− 10 ms− 2 is the
acceleration scale of MOND around which gravitational anomalies at galactic scale appear …

As an alternative to dark matter models, Modified Gravity (MOG) theory is a covariant
modification of Einstein gravity. The theory introduces two additional scalar fields and one …

Predictions of the concordance cosmological model (CCM) of the structures in the
environment of large spiral galaxies are compared with observed properties of Local Group …

We have obtained the first constraint of the parameter space of Scalar–Tensor–Vector
Gravity using the motion of the S2-star around the supermassive black hole at the centre of …

We apply the weak field approximation limit of the covariant scalar–tensor–vector gravity
theory, so-called MOdified gravity (MOG), to the dynamics of clusters of galaxies by using …

General relativity and its Newtonian weak field limit are not sufficient to explain the observed
phenomenology in the Universe, from the formation of large-scale structures to the dynamics …