Stellar structure models in modified theories of gravity: Lessons and challenges

GJ Olmo, D Rubiera-Garcia, A Wojnar - Physics Reports, 2020 - Elsevier
The understanding of stellar structure represents the crossroads of our theories of the
nuclear force and the gravitational interaction under the most extreme conditions observably …

The realistic models of relativistic stars in f (R)= R+ αR2 gravity

AV Astashenok, SD Odintsov… - … and Quantum Gravity, 2017 - iopscience.iop.org
In the context of $ f (R)= R+\alpha R^{2} $ gravity, we study the existence of neutron and
quark stars for various α with no intermediate approximation in the system of equations …

Charged dilatonic black holes in gravity's rainbow

SH Hendi, M Faizal, BE Panah, S Panahiyan - The European Physical …, 2016 - Springer
In this paper, we present charged dilatonic black holes in gravity's rainbow. We study the
geometric and thermodynamic properties of black hole solutions. We also investigate the …

Modified TOV in gravity's rainbow: properties of neutron stars and dynamical stability conditions

SH Hendi, GH Bordbar, BE Panah… - Journal of Cosmology …, 2016 - iopscience.iop.org
In this paper, we consider a spherical symmetric metric to extract the hydrostatic equilibrium
equation of stars in (3+ 1)-dimensional gravity's rainbow in the presence of cosmological …

On neutron stars in f (R) theories: Small radii, large masses and large energy emitted in a merger

MA Resco, Á de la Cruz-Dombriz, FJL Estrada… - Physics of the dark …, 2016 - Elsevier
In the context of f (R) gravity theories, we show that the apparent mass of a neutron star as
seen from an observer at infinity is numerically calculable but requires careful matching, first …

Neutron stars structure in the context of massive gravity

SH Hendi, GH Bordbar, BE Panah… - Journal of Cosmology …, 2017 - iopscience.iop.org
Motivated by the recent interests in spin− 2 massive gravitons, we study the structure of
neutron star in the context of massive gravity. The modifications of TOV equation in the …

[HTML][HTML] Dilatonic BTZ black holes with power-law field

SH Hendi, BE Panah, S Panahiyan, A Sheykhi - Physics Letters B, 2017 - Elsevier
Motivated by low energy effective action of string theory and numerous applications of BTZ
black holes, we will consider minimal coupling between dilaton and nonlinear …

Dilatonic black holes in gravity's rainbow with a nonlinear source: the effects of thermal fluctuations

SH Hendi, BE Panah, S Panahiyan… - The European Physical …, 2017 - Springer
This paper is devoted to an investigation of nonlinearly charged dilatonic black holes in the
context of gravity's rainbow with two cases:(1) by considering the usual entropy,(2) in the …

Constraining quadratic f (R) gravity from astrophysical observations of the pulsar J0704+ 6620

GGL Nashed, W El Hanafy - Journal of Cosmology and …, 2023 - iopscience.iop.org
We apply quadratic f (R)= R+ epsilon R 2 field equations, where epsilon has a dimension [L
2], to static spherical stellar model. We assume the interior configuration is determined by …

Anisotropic magnetized neutron star

GH Bordbar, M Karami - The European Physical Journal C, 2022 - Springer
As we know, the effect of strong magnetic field causes the anisotropy for the magnetized
compact objects. Therefore, in this paper, we have studied the structure properties of …