The 4D Einstein–Gauss–Bonnet theory of gravity: a review

PGS Fernandes, P Carrilho, T Clifton… - … and Quantum Gravity, 2022 - iopscience.iop.org
We review the topic of 4D Einstein–Gauss–Bonnet (4DEGB) gravity, which has been the
subject of considerable interest over the past two years. Our review begins with a general …

Black holes, gravitational waves and fundamental physics: a roadmap

L Barack, V Cardoso, S Nissanke… - … and quantum gravity, 2019 - iopscience.iop.org
70 AIM, UMR 7158, CEA/DRF, CNRS, Université Paris Diderot, Irfu/Service d'Astrophysique,
Centre de Saclay, FR-91191 Gif-sur-Yvette, France

Modified gravity and cosmology

EN Saridakis, R Lazkoz, V Salzano, PV Moniz… - 2021 - Springer
The dawn of the twenty-first century came with very positive prospects for gravity, cosmology,
and astrophysics. Technological progress made it possible for cosmology to enter to its …

Shadows and strong gravitational lensing: a brief review

PVP Cunha, CAR Herdeiro - General Relativity and Gravitation, 2018 - Springer
For ultra compact objects, light rings and fundamental photon orbits (FPOs) play a pivotal
role in the theoretical analysis of strong gravitational lensing effects, and of BH shadows in …

Spin-induced black hole scalarization in einstein-scalar-gauss-bonnet theory

E Berti, LG Collodel, B Kleihaus, J Kunz - Physical Review Letters, 2021 - APS
We construct black hole solutions with spin-induced scalarization in a class of models where
a scalar field is quadratically coupled to the topological Gauss-Bonnet term. Starting from the …

Probing a non-linear electrodynamics black hole with thin accretion disk, shadow, and deflection angle with M87* and Sgr A* from EHT

A Uniyal, RC Pantig, A Övgün - Physics of the Dark Universe, 2023 - Elsevier
Non-linear interaction between the electromagnetic fields (EMF) occurs when vacuum
polarization in quantum electrodynamics (QED) happens. The field of non-linear …

Gravitational decoupling for axially symmetric systems and rotating black holes

E Contreras, J Ovalle, R Casadio - Physical Review D, 2021 - APS
We introduce a systematic and direct procedure to generate hairy rotating black holes by
deforming a spherically symmetric seed solution. We develop our analysis in the context of …

The shape of the black hole photon ring: A precise test of strong-field general relativity

SE Gralla, A Lupsasca, DP Marrone - Physical Review D, 2020 - APS
We propose a new test of strong-field general relativity (GR) based on the universal
interferometric signature of the black hole photon ring. The photon ring is a narrow ring …

Investigating the connection between generalized uncertainty principle and asymptotically safe gravity in black hole signatures through shadow and quasinormal …

G Lambiase, RC Pantig, DJ Gogoi, A Övgün - The European Physical …, 2023 - Springer
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 …

Spontaneously scalarized Kerr black holes in extended scalar-tensor–Gauss-Bonnet gravity

PVP Cunha, CAR Herdeiro, E Radu - Physical Review Letters, 2019 - APS
We construct asymptotically flat, spinning, regular on and outside an event horizon,
scalarized black holes (SBHs) in extended scalar-tensor–Gauss-Bonnet models. They …