195 citations · 416 across the 14 of their papers we have counts for
4 papers · 1 filter
Post-Newtonian orbital mechanics around a black hole in modified gravity
Ioannis Liodis, Gernot Heissel, Rita Mastroioanni +2
Scalar-tensor-vector gravity, also known as modified gravity (MOG), has emerged as an alternative to General Relativity (GR). It aims to explain astrophysical phenomena without inv…
Multiple shadows from distorted static black holes
Jai Grover, Jutta Kunz, Petya Nedkova +2
We study the local shadow of the Schwarzschild black hole with a quadrupole distortion and the influence of the external gravitational field on the photon dynamics. The external ma…
Black Hole Shadows and Invariant Phase Space Structures
Jai Grover, Alexander Wittig
Utilizing concepts from dynamical systems theory, we demonstrate how the existence of light rings, or fixed points, in a spacetime will give rise to families of periodic orbits and…
Chaotic lensing around boson stars and Kerr black holes with scalar hair
P. V. P. Cunha, J. Grover, C. Herdeiro +3
In a recent letter, arXiv:1509.00021, it was shown that the lensing of light around rotating boson stars and Kerr black holes with scalar hair can exhibit chaotic patterns. Since n…