Do hyperons exist in the interior of neutron stars?

D Chatterjee, I Vidana - The European Physical Journal A, 2016 - Springer
In this work we review the role of hyperons on the properties of neutron and proto-neutron
stars. In particular, we revise the so-called “hyperon puzzle”, go over some of the solutions …

GW170817: Constraining the nuclear matter equation of state from the neutron star tidal deformability

T Malik, N Alam, M Fortin, C Providência, BK Agrawal… - Physical Review C, 2018 - APS
Constraints set on key parameters of the nuclear matter equation of state (EoS) by the
values of the tidal deformability, inferred from GW170817, are examined by using a diverse …

GW190814 as a massive rapidly rotating neutron star with exotic degrees of freedom

V Dexheimer, RO Gomes, T Klähn, S Han, M Salinas - Physical Review C, 2021 - APS
In the context of the massive secondary object recently observed in the compact-star merger
GW190814, we investigate the possibility of producing massive neutron stars from a few …

Neutron star radii and crusts: Uncertainties and unified equations of state

M Fortin, C Providência, AR Raduta, F Gulminelli… - Physical Review C, 2016 - APS
The uncertainties in neutron star radii and crust properties due to our limited knowledge of
the equation of state are quantitatively analyzed. We first demonstrate the importance of a …

Relativistic mean-field hadronic models under nuclear matter constraints

M Dutra, O Lourenço, SS Avancini, BV Carlson… - Physical Review C, 2014 - APS
Background: The microscopic composition and properties of infinite hadronic matter at a
wide range of densities and temperatures have been subjects of intense investigation for …

CREX-and PREX-II-motivated relativistic interactions and their implications for the bulk properties of nuclear matter and neutron stars

M Kumar, S Kumar, V Thakur, R Kumar, BK Agrawal… - Physical Review C, 2023 - APS
We investigate the implications of parity-violating electron scattering experiment on neutron
skin thickness of Ca 48 [calcium radius experiment (CREX)] and Pb 208 [lead radius …

Projecting the likely importance of weak-interaction-driven bulk viscosity in neutron star mergers

ER Most, SP Harris, C Plumberg… - Monthly Notices of …, 2022 - academic.oup.com
In this work, we estimate how much bulk viscosity driven by Urca processes is likely to affect
the gravitational wave signal of a neutron star coalescence. In the late inspiral, we show that …

Hyperons and massive neutron stars: vector repulsion and SU (3) symmetry

S Weissenborn, D Chatterjee, J Schaffner-Bielich - Physical Review C …, 2012 - APS
With the discovery of massive neutron stars such as PSR J1614-2230, the question has
arisen of whether exotic matter such as hyperons can exist in the neutron star core. We …

Spanning the full range of neutron star properties within a microscopic description

T Malik, M Ferreira, MB Albino, C Providência - Physical Review D, 2023 - APS
The high-density behavior of nuclear matter is analyzed within a relativistic mean field
description with nonlinear meson interactions. To assess the model parameters and their …

Impact of the equation of state on - and - mode oscillations of neutron stars

A Kunjipurayil, T Zhao, B Kumar, BK Agrawal… - Physical Review D, 2022 - APS
We investigate the impact of the neutron-star matter equation of state on the f-and p 1-mode
oscillations of neutron stars obtained within the Cowling approximation and linearized …