A review on analytical studies in Gravitational Lensing

A Chowdhuri, S Ghosh, A Bhattacharyya - Frontiers in Physics, 2023 - frontiersin.org
In this study, we review some current studies on gravitational lensing for black holes, mainly
in the context of general relativity. We mainly focus on the analytical studies related to …

Horizon-scale tests of gravity theories and fundamental physics from the Event Horizon Telescope image of Sagittarius A

S Vagnozzi, R Roy, YD Tsai, L Visinelli… - … and Quantum Gravity, 2023 - iopscience.iop.org
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 …

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 …

Decoupling gravitational sources in general relativity: from perfect to anisotropic fluids

J Ovalle - Physical Review D, 2017 - APS
Decoupling gravitational sources in general relativity: From perfect to anisotropic fluids Page 1
Decoupling gravitational sources in general relativity: From perfect to anisotropic fluids Jorge …

[HTML][HTML] Decoupling gravitational sources in general relativity: The extended case

J Ovalle - Physics Letters B, 2019 - Elsevier
We show how to decoupling two spherically symmetric and static gravitational sources
through the most general possible extension of the so-called Minimal Geometric …

Anisotropic solutions by gravitational decoupling

J Ovalle, R Casadio, R Da Rocha… - The European Physical …, 2018 - Springer
We investigate the extension of isotropic interior solutions for static self-gravitating systems
to include the effects of anisotropic spherically symmetric gravitational sources by means of …

Hairy black holes by gravitational decoupling

J Ovalle, R Casadio, E Contreras… - Physics of the Dark …, 2021 - Elsevier
Black holes with hair represented by generic fields surrounding the central source of the
vacuum Schwarzschild metric are examined under the minimal set of requirements …

Observational constraints on maximum mass limit and physical properties of anisotropic strange star models by gravitational decoupling in Einstein–Gauss–Bonnet …

SK Maurya, KN Singh, M Govender… - Monthly Notices of the …, 2023 - academic.oup.com
In this work, we are guided by the gravitational wave events GW 170817 and GW 190814
together with observations of neutron stars PSR J1614-2230, PSR J1903+ 6620, and LMC X …

Role of Complexity on Self‐gravitating Compact Star by Gravitational Decoupling

SK Maurya, A Errehymy, R Nag… - Fortschritte der Physik, 2022 - Wiley Online Library
In this paper, we study novel classes of solutions characterizing the role of complexity on
static and spherically symmetric self‐gravitating systems proposed by L. Herrera (Phys Rev …

Black holes by gravitational decoupling

J Ovalle, R Casadio, R Rocha, A Sotomayor… - The European Physical …, 2018 - Springer
We investigate how a spherically symmetric fluid modifies the Schwarzschild vacuum
solution when there is no exchange of energy-momentum between the fluid and the central …