Equation of state of hot dense hyperonic matter in the Quark–Meson-Coupling (QMC-A) model

JR Stone, V Dexheimer, PAM Guichon… - Monthly Notices of …, 2021 - academic.oup.com
We report a new equation of state (EoS) of cold and hot hyperonic matter constructed in the
framework of the quark–meson-coupling (QMC-A) model. The QMC-A EoS yields results …

What do we learn about vector interactions from GW170817?

V Dexheimer, R de Oliveira Gomes… - Journal of Physics G …, 2019 - iopscience.iop.org
We analyze the role played by a mixed vector-isoscalar/vector-isovector meson interaction
in dense matter present in the interior of neutron stars in the light of new measurements …

A neutron star is born

DP Menezes - Universe, 2021 - mdpi.com
A neutron star was first detected as a pulsar in 1967. It is one of the most mysterious
compact objects in the universe, with a radius of the order of 10 km and masses that can …

Role of the symmetry energy slope in neutron stars: Exploring the model dependency

LL Lopes - Physical Review C, 2024 - APS
Using six different parametrizations of the quantum hadrodynamics (one of which is
original), I study how different values of the symmetry energy slope L affect some …

Imprints of the nuclear symmetry energy slope in gravitational wave signals emanating from neutron stars

LL Lopes, VBT Alves, COV Flores, G Lugones - Physical Review D, 2023 - APS
We investigate possible traces of the nuclear symmetry energy slope (L) in the gravitational
wave emission of neutron stars. For fixed stellar mass values, we examine how the slope …

Many-body forces in the equation of state of hyperonic matter

RO Gomes, V Dexheimer, S Schramm… - The Astrophysical …, 2015 - iopscience.iop.org
In this work we introduce an extended version of the formalism proposed originally by
Taurines et al. that considers the effects of many-body forces simulated by nonlinear self …

[HTML][HTML] Broken SU (6) symmetry and massive hybrid stars

LL Lopes, DP Menezes - Nuclear Physics A, 2021 - Elsevier
In this work we revisit the quantum hadrodynamics (QHD) formalism to investigate hyperonic
and hybrid stars with hyperon-meson couplings fixed via broken SU (6) group, in favor of a …

Correlation between the symmetry energy slope and the deconfinement phase transition

LL Lopes, DP Menezes, MR Pelicer - Physical Review C, 2024 - APS
We study how the nuclear symmetry energy slope (L) can affect the hadron-quark phase
transition and neutron star properties. We show that the main physical quantities as the …

Decoding rotating neutron stars: Role of the symmetry energy slope

LL Lopes - The Astrophysical Journal, 2024 - iopscience.iop.org
Abstract In 2023 December, the Fermi Large Area Telescope Catalog announced the
discovery of 33 new millisecond pulsars. Motivated by that, in this work, I study how different …

Gravitational wave signatures of highly magnetized neutron stars

CV Flores, LL Lopes, LB Castro… - The European Physical …, 2020 - Springer
Motivated by the recent gravitational wave detection by the LIGO–VIRGO observatories, we
study the Love number and dimensionless tidal polarizability of highly magnetized stars. We …