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 …

Anisotropic Strange Star Model Beyond Standard Maximum Mass Limit by Gravitational Decoupling in f (Q) f(Q) Gravity

SK Maurya, KN Singh, SV Lohakare… - Fortschritte der …, 2022 - Wiley Online Library
The current theoretical development identified as the gravitational decoupling via Complete
Geometric Deformation (CGD) method that has been introduced to explore the nonmetricity …

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 …

Anisotropic compact stars in complexity formalism and isotropic stars made of anisotropic fluid under minimal geometric deformation (MGD) context in gravity …

SK Maurya, A Errehymy, M Govender… - The European Physical …, 2023 - Springer
In this paper, we present an anisotropic solution for static and spherically symmetric self-
gravitating systems by demanding the vanishing of the complexity factor (Herrera in Phys …

Gravitational decoupling minimal geometric deformation model in modified f (R, T) gravity theory

SK Maurya, A Errehymy, KN Singh, F Tello-Ortiz… - Physics of the Dark …, 2020 - Elsevier
The present paper is devoted to investigating the possibility of getting stellar interiors for
ultra-dense compact spherical systems portraying an anisotropic matter distribution …

Compact stars with dark matter induced anisotropy in complexity-free background and effect of dark matter on GW echoes

SK Maurya, KN Singh, A Aziz, S Ray… - Monthly Notices of the …, 2024 - academic.oup.com
In this work, we consider the vanishing complexity factor scenario which has opened up a
whole new way of generating solutions to the Einstein field equations for the spherically …

Class I approach as MGD generator

F Tello-Ortiz, SK Maurya, Y Gomez-Leyton - The European Physical …, 2020 - Springer
In this work we build a relativistic anisotropic admissible compact structures. To do so we
combine the class I approach with gravitational decoupling in order to generate the …

Anisotropic compact stars admitting karmarkar condition in theory

S Rani, M Adeel, MZ Gul, A Jawad - International Journal of …, 2024 - World Scientific
The major goal of this study is to examine the viability and stability of anisotropic compact
stellar objects using the Karmarkar condition in f (𝒬) gravity, where 𝒬 is a scalar of …