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 …
A bstract We comment on the recently introduced Gauss-Bonnet gravity in four dimensions. We argue that it does not make sense to consider this theory to be defined by a set of D→ 4 …
Black hole (BH) shadows can be used to probe new physics in the form of ultralight particles via the phenomenon of superradiant instability. By directly affecting the BH mass and spin …
Motivated by recent work on the Modified Maxwell (ModMax) black holes [Phys Lett B 10.1016/j. physletb. 2020.136011], which are invariant in duality rotations and conformal …
Searching for violations of the no-hair theorem (NHT) is a powerful way to test gravity, and more generally fundamental physics, particularly with regards to the existence of additional …
The links between the deformation parameter β of the generalized uncertainty principle (GUP) to the two free parameters ω^ and γ of the running Newtonian coupling constant of …
HY Lin, XM Deng - Physics of the Dark Universe, 2021 - Elsevier
The orbital dynamics in the strong gravitational field might present unique features of quantum gravity and high-dimensional theory. In this paper, a timelike particle's periodic …
XX Zeng, HQ Zhang, H Zhang - The European Physical Journal C, 2020 - Springer
We investigate the shadows and photon spheres of the four-dimensional Gauss–Bonnet black hole with the static and infalling spherical accretions. We show that, for both cases …
XX Zeng, HQ Zhang - The European Physical Journal C, 2020 - Springer
We investigate the effects of quintessence dark energy on the shadows of black hole, surrounded by various profiles of accretions. For the thin-disk accretion, the images of the …