Radial pulsations of hybrid neutron stars

C Vasquez Flores, CH Lenzi… - International Journal of …, 2012 - World Scientific
In this work we investigate the adiabatic radial oscillations of hybrid stars. We use a
relativistic-mean-field model equation of state (EOS) to describe the hadron phase and the …

Radial oscillations of hybrid stars

VK Gupta, V Tuli, A Goyal - The Astrophysical Journal, 2002 - iopscience.iop.org
We study the effect of a quark and nuclear matter mixed phase on the radial oscillation
modes of neutron stars. For this study, we have considered recent models from two classes …

Phase transition effects on the dynamical stability of hybrid neutron stars

JP Pereira, CV Flores, G Lugones - The Astrophysical Journal, 2018 - iopscience.iop.org
We study radial oscillations of hybrid nonrotating neutron stars composed by a quark matter
core and hadronic external layers. At first, we physically deduce the junction conditions that …

Non-radial oscillation modes in hybrid stars: consequences of a mixed phase

D Kumar, H Mishra, T Malik - Journal of Cosmology and …, 2023 - iopscience.iop.org
We study the possibility of the existence of a deconfined quark matter in the core of neutron
star (NS) s and its relation to non-radial oscillation modes in NSs and hybrid star (HS) s. We …

Radial oscillations of hybrid stars and neutron stars including delta baryons: the effect of a slow quark phase transition

IA Rather, KD Marquez, BC Backes… - … of Cosmology and …, 2024 - iopscience.iop.org
We study radial oscillations of hybrid neutron stars composed of hadronic external layers
followed by a quark matter core. We employ a density-dependent relativistic mean-field …

Equation of state and radial oscillations of neutron stars

TT Sun, ZY Zheng, H Chen, GF Burgio, HJ Schulze - Physical Review D, 2021 - APS
We investigate radial oscillations of pure neutron stars and hybrid stars, employing
equations of state of nuclear matter from Brueckner-Hartree-Fock theory, and of quark matter …

Radial modes of neutron stars with a quark core

PK Sahu, GF Burgio, M Baldo - The Astrophysical Journal, 2002 - iopscience.iop.org
We make a first calculation of eigenfrequencies of radial pulsations of neutron stars with
quark cores in a general relativistic formalism given by Chandrasekhar. The equations of …

Fundamental-mode eigenfrequencies of neutral and charged twin neutron stars

VP Gonçalves, JC Jiménez, L Lazzari - The European Physical Journal C, 2022 - Springer
We investigate the effects of rapid and slow conversions on the fundamental-mode
eigenfrequencies of hybrid neutron stars having highly discontinuous transitions between …

-mode oscillations of hybrid stars with pasta construction

ZY Zheng, JB Wei, H Chen, XP Zheng… - arXiv preprint arXiv …, 2024 - arxiv.org
We investigate nonradial $ f $-mode oscillations of hybrid neutron stars in full general
relativity, employing hybrid equations of state describing a nuclear outer core and a pasta …

INVESTIGATION OF THE EXISTENCE OF HYBRID STARS USING NAMBU–JONA–LASINIO MODELS

JG Coelho, CH Lenzi, M Malheiro… - … Journal of Modern …, 2010 - World Scientific
We investigate the hadron-quark phase transition inside neutron stars and obtain mass–
radius relations for hybrid stars. The equation of state for the quark phase using the standard …