Phase transitions in neutron stars and their links to gravitational waves

MG Orsaria, G Malfatti, M Mariani… - Journal of Physics G …, 2019 - iopscience.iop.org
The recent direct observation of gravitational wave event GW170817 and its GRB170817A
signal has opened up a new window to study neutron stars and heralds a new era of …

Impacts of dark matter on the -mode oscillation of hyperon star

HC Das, A Kumar, SK Biswal, SK Patra - Physical Review D, 2021 - APS
We investigate the f-mode oscillation of the dark matter admixed hyperon star within the
relativistic Cowling approximation. The macroscopic properties are calculated with the …

Consistent relativistic mean-field models constrained by GW170817

O Lourenço, M Dutra, CH Lenzi, CV Flores… - Physical Review C, 2019 - APS
We have obtained the Love number and corresponding tidal deformabilities (Λ) associated
with the relativistic mean-field parametrizations shown to be consistent (CRMF) with the …

[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 …

Heavy magnetic neutron stars

IA Rather, U Rahaman, V Dexheimer… - The Astrophysical …, 2021 - iopscience.iop.org
We systematically study the properties of pure nucleonic and hyperonic magnetic stars using
a density-dependent relativistic mean-field (DD-RMF) equations of state. We explore several …

Baryon coupling scheme in a unified SU (3) and SU (6) symmetry formalism

LL Lopes, KD Marquez, DP Menezes - Physical Review D, 2023 - APS
We calculate the baryon-meson coupling constants for the spin-1/2 baryonic octet and spin-
3/2 decuplet in a unified approach relying on symmetry arguments such as the fact that the …

Hypermassive quark cores

LL Lopes, C Biesdorf… - Monthly Notices of the …, 2022 - academic.oup.com
Using a quantum hadrodynamics (QHD) and MIT-based models, we construct hybrid stars
within the Maxwell criteria of hadron-quark phase transition. We are able to produce a hybrid …

Combined Rastall and rainbow theories of gravity with applications to neutron stars

CE Mota, LCN Santos, G Grams, FM da Silva… - Physical Review D, 2019 - APS
The possibility of modifications on general relativity is investigated. We propose an
alternative theory of gravity constructed with the combination of Rastall and rainbow …

Gravitational wave asteroseismology of dark matter hadronic stars

CV Flores, CH Lenzi, M Dutra, O Lourenço… - Physical Review D, 2024 - APS
The influence of the dark matter mass (M χ) and the Fermi momentum (k F DM) on the f 0-
mode oscillation frequency, damping time parameter, and tidal deformability of hadronic …

Anisotropic compact stars in Rastall–Rainbow gravity

CE Mota, LCN Santos, FM da Silva… - … and Quantum Gravity, 2022 - iopscience.iop.org
In this work, we investigate anisotropic effects on the equations of state (EoS) used to
describe neutron and quark stars in the framework of Rastall–Rainbow gravity. All our …