Phase conversions in neutron stars: Implications for stellar stability and gravitational wave astrophysics

G Lugones, AG Grunfeld - Universe, 2021 - mdpi.com
We review the properties of hybrid stars with a quark matter core and a hadronic mantle,
focusing on the role of key micro-physical properties such as the quark/hadron surface and …

[HTML][HTML] Dark matter effects on hybrid star properties

CH Lenzi, M Dutra, O Lourenço, LL Lopes… - The European Physical …, 2023 - Springer
In the present work, we investigate the effects of dark matter (DM) on hybrid star properties.
We assume that dark matter is mixed with both hadronic and quark matter and interacts with …

Hybrid stars are compatible with recent astrophysical observations

A Kumar, VB Thapa, M Sinha - Physical Review D, 2023 - APS
Compact stars (CS) are stellar remnants of massive stars. Inside CSs the density is so high
that matter is in subatomic form composed of nucleons. With an increase of density of matter …

The mass–radius relation for quark stars in energy–momentum squared gravity

T Tangphati, I Karar, A Banerjee, A Pradhan - Annals of Physics, 2022 - Elsevier
We study the structure of quark stars (QSs) adopting homogeneously confined matter inside
the star with a 3-flavor neutral charge and a fixed strange quark mass m s. We explore the …

Hybrid star properties with the NJL and mean field approximation of QCD models: A Bayesian approach

M Albino, T Malik, M Ferreira, C Providência - Physical Review D, 2024 - APS
The composition of the core of neutron stars (NSs) is still under debate. One possibility is
that because of the high densities reached in their cores, matter could be deconfined into …

Constraining the equation of state of hybrid stars using recent information from multidisciplinary physics

S Shirke, S Ghosh, D Chatterjee - The Astrophysical Journal, 2023 - iopscience.iop.org
At the ultrahigh densities existing in the core of neutron stars (NSs), it is expected that a
phase transition from baryonic to deconfined quark matter may occur. Such a phase …

[HTML][HTML] Anisotropic quark stars in energy-momentum squared gravity

T Tangphati, A Errehymy, A Banerjee… - Journal of High Energy …, 2023 - Elsevier
At super-saturation densities, quarks in the core of neutron stars (NSs) have been a subject
of intense investigation for last few decades. In particular, an intriguing conjecture has …

Hybrid stars with reactive interfaces: Analysis within the Nambu–Jona-Lasinio model

CH Lenzi, G Lugones, C Vasquez - Physical Review D, 2023 - APS
It has been shown recently that quark-hadron conversions at the interface of a hybrid star
may have a key role on the dynamic stability of the compact object. In this work we perform a …

A model-agnostic analysis of hybrid stars with reactive interfaces

G Lugones, M Mariani… - Journal of Cosmology …, 2023 - iopscience.iop.org
We study hybrid stars considering the effects on stellar stability of the hadron-quark
conversion speed at the sharp interface. The equation of state is constructed by combining a …

PNJL model at zero temperature: The three-flavor case

OA Mattos, T Frederico, CH Lenzi, M Dutra, O Lourenço - Physical Review D, 2021 - APS
We propose a three-flavor version of the Polyakov-Nambu-Jona-Lasino (PNJL) model at
zero temperature regime, by implementing a traced Polyakov loop (Φ) dependence in the …