Anisotropic neutron stars with hyperons: implication of the recent nuclear matter data and observations of neutron stars

A Rahmansyah, A Sulaksono, AB Wahidin… - The European Physical …, 2020 - Springer
Motivated by a recent report by Biwas and Bose (Phys Rev D 99: 104002, 2019) that the
observations of GW170817 to constrain the extent of pressure anisotropy in neutron stars …

Recent multimessenger constraints and the anisotropic neutron star

A Rahmansyah, A Sulaksono - Physical Review C, 2021 - APS
The impact of anisotropic pressure models in neutron stars (NSs) is increasing their
compactness. Therefore, for the relatively soft NS equation of state (EOS), we can still obtain …

relation for an anisotropic neutron star

HC Das - Physical Review D, 2022 - APS
One of the most common assumptions has been made that the pressure inside the star is
isotropic in nature. However, the pressure is locally anisotropic in nature which is a more …

Radial pulsations, moment of inertia and tidal deformability of dark energy stars

JMZ Pretel - The European Physical Journal C, 2023 - Springer
We construct dark energy stars with Chaplygin-type equation of state (EoS) in the presence
of anisotropic pressure within the framework of Einstein gravity. From the classification …

[HTML][HTML] Anisotropic compact stellar solution in general relativity

L Baskey, S Ray, S Das, S Majumder, A Das - The European Physical …, 2023 - Springer
We present herein a new class of singularity-free interior solutions to describe realistic
anisotropic compact stellar objects with spherically symmetric matter distribution. A specific …

Anisotropic fluid solution in f (Q) gravity satisfying vanishing complexity factor

S Kaur, SK Maurya, S Shukla - Physica Scripta, 2023 - iopscience.iop.org
This paper presents a study on a spherically symmetric anisotropic solution in f (Q) gravity in
the framework of vanishing complexity formalism, which derives a relation between …

New charged anisotropic solution in f (Q)-gravity and effect of non-metricity and electric charge parameters on constraining maximum mass of self-gravitating objects

SK Maurya, A Ashraf, F Al Khayari, G Mustafa… - The European Physical …, 2024 - Springer
In the present article, A new class of singularity-free charged anisotropic stars is derived in f
(Q)-gravity regime. To solve the field equations, we assume a particular form of anisotropy …

Realistic anisotropic neutron stars: Pressure effects

LM Becerra, EA Becerra-Vergara, FD Lora-Clavijo - Physical Review D, 2024 - APS
In this paper, we study the impact of anisotropy on neutron stars with different equations of
state, which have been modeled by a piecewise polytropic function with continuous sound …

Impact of Fermi-surface distortion in a relativistic mean-field model on the moment of inertia and tidal deformability of neutron stars

R Rizaldy, A Sulaksono - Physical Review C, 2024 - APS
We have previously shown [R. Rizaldy, AR Alfarasyi, A. Sulaksono, and T. Sumaryada,
Phys. Rev. C 100, 055804 (2019) 2469-9985 10.1103/PhysRevC. 100.055804] that Fermi …

The impact of anisotropy on neutron star properties: insights from 𝖨–𝖿–𝖢 universal relations

SR Mohanty, S Ghosh, P Routaray… - Journal of Cosmology …, 2024 - iopscience.iop.org
Anisotropy in pressure within a star emerges from exotic internal processes. In this study, we
incorporate pressure anisotropy using the Quasi-Local model. Macroscopic properties …