Anisotropic quark stars in f (R)= R 1+ ϵ gravity

JMZ Pretel, SB Duarte - Classical and Quantum Gravity, 2022 - iopscience.iop.org
Within the metric formalism of f (R) theories of gravity, where R is the Ricci scalar, we study
the hydrostatic equilibrium structure of compact stars with the inclusion of anisotropic …

Constraining gravity by Pulsar SAX J1748.9-2021 observations

GGL Nashed, S Capozziello - The European Physical Journal C, 2024 - Springer
We discuss spherically symmetric dynamical systems in the framework of a general model of
f (R) gravity, ie f (R)= R e ζ R, where ζ is a dimensional quantity in squared length units [L 2] …

Study of compact objects: a new analytical stellar model

S Das, K Chakraborty, F Rahaman… - The European Physical …, 2024 - Springer
In this paper, we obtain analytical solutions of Einstein field equations for a spherically
symmetric anisotropic matter distributions. For this purpose physically meaningful metric …

Moment of inertia of slowly rotating anisotropic neutron stars in gravity

JMZ Pretel - Modern Physics Letters A, 2022 - World Scientific
Within the framework of f (R, T) theories of gravity, we investigate the hydrostatic equilibrium
of anisotropic neutron stars with a physically relevant equation of state (EoS) for the radial …

Exploring compact stellar structures in Finsler–Randers geometry with the Barthel connection

J Praveen, SK Narasimhamurthy… - The European Physical …, 2024 - Springer
This study introduces a pioneering approach to analyzing compact stars through Finslerian
geometry, which has not been previously explored in this context. By employing the Barthel …

Anisotropic extension of the Kohler–Chao–Tikekar cosmological solution with like Wyman IIa complexity factor

B Siza, J Andrade, D Santana, T Naseer - The European Physical Journal …, 2024 - Springer
We construct a new stellar compact object model in the regime of anisotropic pressure using
the framework of gravitational decoupling via minimal geometric deformation, with the …

Compact star coupled with dark energy in the background of Tolman–Kuchowicz spacetime

S Saklany, B Pandey, N Pant - Modern Physics Letters A, 2022 - World Scientific
This paper provides a simplified description for simulating the coupling of dark energy with
baryonic matter by considering a super-dense pulsar PSRJ1614-2230 as the model star …

Hybrid star model with Tolman–Buchdahl metric potentials in non-conservative theory of gravity

A Majeed, G Abbas, A Siddiqa, A Ashraf… - Physics of the Dark …, 2024 - Elsevier
In this study, we propose a streamlined approach to analyze the characteristics of compact
stars with a unique equation of state resulting from the hybridization of dark matter and …

[HTML][HTML] Speed of sound for hadronic and quark phases in a magnetic field

EJ Ferrer, A Hackebill - Nuclear Physics A, 2023 - Elsevier
In this paper we calculate the speed of sound for three phases that may exist inside a
magnetized hybrid neutron star at different density regions: A hadronic phase at low …

The stability of anisotropic compact stars influenced by dark matter under teleparallel gravity: an extended gravitational deformation approach

S Pradhan, P Bhar, S Mandal, PK Sahoo… - The European Physical …, 2025 - Springer
In our investigation, we pioneer the development of geometrically deformed strange stars
within the framework of teleparallel gravity theory through gravitational decoupling via the …