[HTML][HTML] Quark models and radial oscillations: decoding the HESS J1731-347 compact object's equation of state

IA Rather, G Panotopoulos, I Lopes - The European Physical Journal C, 2023 - Springer
We investigate the peculiar nature of strange stars through an analysis of different quark
models, ie vBag model and CFL model equation of states at different parameter sets, and …

Temperature and strong magnetic field effects in dense matter

J Peterson, P Costa, R Kumar, V Dexheimer… - Physical Review D, 2023 - APS
We study consistently the effects of magnetic field on hot and dense matter. In particular, we
look for differences that arise due to assumptions that reproduce the conditions produced in …

[HTML][HTML] Quark stars in massive gravity might be candidates for the mass gap objects

J Sedaghat, BE Panah, R Moradi, SM Zebarjad… - The European Physical …, 2024 - Springer
We have investigated the structural properties of strange quark stars (SQSs) in a modified
theory of gravity known as massive gravity. In order to obtain the equation of state (EOS) of …

Cold and dense perturbative QCD in a very strong magnetic background

ES Fraga, LF Palhares, TE Restrepo - Physical Review D, 2024 - APS
We compute the pressure from first principles within perturbative QCD at finite baryon
density and very high magnetic fields up to two-loops and with physical quark masses. The …

[HTML][HTML] Anisotropic dark energy stars within vanishing complexity factor formalism: Hydrostatic equilibrium, radial oscillations, and observational implications

G Panotopoulos, Á Rincón, I Lopes - Physics Letters B, 2024 - Elsevier
We investigate the structure and radial oscillations of anisotropic compact stars composed of
dark energy, using the vanishing complexity factor formalism within general relativity. This …

Electron and muon dynamics in neutron stars beyond chemical equilibrium

J Kopp, T Opferkuch - Journal of Cosmology and Astroparticle …, 2024 - iopscience.iop.org
A neutron star harbors Script O (10 56) electrons in its core, and almost the same number of
muons, with muon decay prohibited by Pauli blocking. However, as macroscopic properties …

Formation of a magnetized hybrid star with a purely toroidal field from phase-transition-induced collapse

AKL Yip, PCK Cheong, TGF Li - Monthly Notices of the Royal …, 2024 - academic.oup.com
Strongly magnetized neutron stars are popular candidates for producing detectable
electromagnetic and gravitational-wave signals. Gravitational collapses of neutron stars …

Strongly interacting matter in extreme magnetic fields

P Adhikari, M Ammon, SS Avancini, A Ayala… - arXiv preprint arXiv …, 2024 - arxiv.org
Magnetic fields are ubiquitous across different physical systems of current interest; from the
early Universe, compact astrophysical objects and heavy-ion collisions to condensed matter …

Tidal Love numbers of anisotropic stars within the complexity factor formalism

Á Rincón, G Panotopoulos, I Lopes - Chinese Journal of Physics, 2024 - Elsevier
We compute the quadrupolar gravitoelectric tidal Love numbers of spherical configurations
made of anisotropic matter. Anisotropies are introduced within the vanishing complexity …

Constraint on the equation of state of strange quark star: Perturbative QCD along with a density-dependent bag constant

J Sedaghat, GH Bordbar, SM Zebarjad - Annals of Physics, 2025 - Elsevier
This study investigates the structural properties of strange quark stars (SQS) using a
Quantum Chromodynamics (QCD) perturbative model combined with the latest Particle Data …