Neutron stars in f (R, T) gravity with conserved energy-momentum tensor: Hydrostatic equilibrium and asteroseismology

JMZ Pretel, SE Jorás, RRR Reis… - Journal of Cosmology …, 2021 - iopscience.iop.org
We investigate the equilibrium and radial stability of spherically symmetric relativistic stars,
considering a polytropic equation of state (EoS), within the framework of f (R, T) gravity with …

Neutron stars in f (ℛ, T) gravity using realistic equations of state in the light of massive pulsars and GW170817

R Lobato, O Lourenço, P Moraes… - … of Cosmology and …, 2020 - iopscience.iop.org
In this work we investigate neutron stars (NS) in f (Script R, T) gravity for the case R+ 2λ
Script T, Script R is the Ricci scalar and Script T the trace of the energy-momentum tensor …

Quark stars with 2.6 in a non-minimal geometry-matter coupling theory of gravity

GA Carvalho, RV Lobato, D Deb, P Moraes… - The European Physical …, 2022 - Springer
This work analyses the hydrostatic equilibrium configurations of strange stars in a non-
minimal geometry-matter coupling (GMC) theory of gravity. Those stars are made of strange …

Rapidly rotating neutron stars in gravity

FM da Silva, LCN Santos, CE Mota… - The European Physical …, 2023 - Springer
In this work, we study the influence of f (R, T) gravity on rapidly rotating neutron stars. First
we discuss the main aspects of this modified theory of gravity where the gravitational …

Wormhole geometries supported by strange quark matter and phantom-like generalized Chaplygin gas within f (Q) gravity

S Pradhan, Z Hassan, PK Sahoo - Physics of the Dark Universe, 2024 - Elsevier
A crucial aspect of wormhole (WH) physics is the inclusion of exotic matter, which requires
violating the null energy condition. Here, we explore the potential for WHs to be sustained by …

Strange magnetars admixed with fermionic dark matter

O Ferreira, ES Fraga - Journal of Cosmology and Astroparticle …, 2023 - iopscience.iop.org
We discuss strange stars admixed with fermionic dark matter in the presence of a strong
magnetic field using the two-fluid Tolman-Oppenheimer-Volkov equations. We describe …

Traversable wormholes in the traceless gravity

P Sahoo, P Moraes, MM Lapola… - International Journal of …, 2021 - World Scientific
Wormholes are tunnels connecting different regions in spacetime. They were obtained
originally as a solution for Einstein's General Theory of Relativity and according to this …

General isotropic charged fluid spheres within the matter coupling gravity formalism

MR Shahzad, W Habib, A Ashraf, F Javed… - Physics of the Dark …, 2025 - Elsevier
In this paper, we proposed a new mathematical model of charged isotropic compact
relativistic object in the f (R, T) gravity. In the f (R, T) framework, the gravitational action …

Well-behaved class of Heintzmann's solution within framework

P Rej, A Karmakar - The European Physical Journal Plus, 2024 - Springer
The primary objective of this paper is to develop a well-behaved class of Heintzmann IIa [H.
Heintzmann, Z. Physik 228, 489-493 (1969)] solution in the context of\(f (R,\, T)\) gravity. In …

Quark stars in energy-momentum squared gravity with recent astrophysical observations

A Banerjee, İ Sakallı, J Rayimbaev, I Ibragimov… - Physics of the Dark …, 2025 - Elsevier
In this study, we explore the structural properties of quark stars (QSs) within the Energy-
Momentum Squared Gravity (EMSG) framework, a modified gravity theory characterized by a …