-mode oscillations in hot Neutron Stars: Effect of hyperons and neutrino trapping
arXiv:2506.03288 · doi:10.1093/mnras/staf1775
Abstract
In this work, we present an equation of state formalism for hot Neutron Stars (NSs) which consistently includes the effects of finite temperature, hyperons as well as neutrino trapping, relevant for the study of proto-neutron stars, binary neutron star mergers and supernova explosions. Within a non-linear relativistic mean field description, the framework allows for a systematic variation of nuclear parameters within the range allowed by uncertainties in nuclear experimental data, ensuring compatibility with nuclear theory, astrophysical and heavy-ion data. We then investigate the role of nuclear and hypernuclear parameters as well as thermal effects on NS macroscopic properties and -mode oscillations in hot neutron stars within Cowling approximation. Our results reveal that in hyperonic neutron stars with trapped neutrinos, the saturation nuclear density shows moderate to strong correlation with NS astrophysical observables. We also investigate whether thermal effects break universal relations and provide fit relations for hot NS configurations in the neutrino-trapped regime.
18 pages
References in corpus (55)
- GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
- Shapiro delay measurement of a two solar mass neutron star
- A Massive Pulsar in a Compact Relativistic Binary
- PSR J0030+0451 Mass and Radius from NICER Data and Implications for the Properties of Neutron Star Matter
- A NICER View of PSR J0030+0451: Millisecond Pulsar Parameter Estimation
- A NICER View of the Massive Pulsar PSR J0740+6620 Informed by Radio Timing and XMM-Newton Spectroscopy
- Theory of Core-Collapse Supernovae
- Hyperon Puzzle: Hints from Quantum Monte Carlo Calculations
- Building relativistic mean field models for finite nuclei and neutron stars
- Spectral properties of the post-merger gravitational-wave signal from binary neutron stars
- Neutron Stars and the Nuclear Equation of State
- Results of the ASY-EOS experiment at GSI: The symmetry energy at suprasaturation density
- New Hyperon Equations of State for Supernovae and Neutron Stars in Density-dependent Hadron Field Theory
- Proto-Neutron and Neutron Stars in a Chiral SU(3) Model
- Multi-messenger picture of compact binary mergers
- Neutron matter from chiral two- and three-nucleon calculations up to NLO
- Gravitational waves from relativistic neutron star mergers with nonzero-temperature equations of state
- Tables of Hyperonic Matter Equation of State for Core-Collapse Supernovae
- A new temperature dependent hyperonic equation of state: application to rotating neutron star models and I-Q-relations
- Proto-neutron stars with heavy baryons and universal relations
- Constraining the dense matter equation of state with new NICER mass-radius measurements and new chiral effective field theory inputs
- Gravitational wave asteroseismology with protoneutron stars
- General relativistic treatment of -mode oscillations of hyperonic stars
- Maximum mass of compact stars from gravitational wave events with finite-temperature equations of state
- Hot quark matter and (proto-) neutron stars
- Effect of hyperons on f-mode oscillations in Neutron Stars
- Beta equilibrium under neutron star merger conditions
- Inference of proto-neutron star properties from gravitational-wave data in core-collapse supernovae
- Imposing multi-physics constraints at different densities on the Neutron Star Equation of State
- Equations of state for hot neutron stars -- II. The role of exotic particle degrees of freedom
- Multi-physics constraints at different densities to probe nuclear symmetry energy in hyperonic neutron stars
- Accuracy of relativistic Cowling approximation in protoneutron star asteroseismology
- Probing neutron-star matter in the lab: similarities and differences between binary mergers and heavy-ion collisions
- Avoided crossing in gravitational wave spectra from protoneutron star
- Dimension dependence of numerical simulations on gravitational waves from protoneutron stars
- Universal relations for rapidly rotating cold and hot hybrid star
- Bayesian Inference of the Dense Matter Equation of State built upon Covariant Density Functionals
- Exploring thermal effects of the hadron-quark matter transition in neutron star mergers
- Thermal behavior as indicator for hyperons in binary neutron star merger remnants
- Equation of state and composition of proto-neutron stars and merger remnants with hyperons
- Three approaches for the classification of protoneutron star oscillation modes
- Exotic Baryons in Hot Neutron Stars
- Constraining the equation of state of hybrid stars using recent information from multidisciplinary physics
- Universality in supernova gravitational waves with proto-neutron star properties
- Frequencies of - and -oscillation modes in cold and hot compact stars
- Measuring the properties of mode oscillations of a protoneutron star by third generation gravitational-wave detectors
- Constraining dense matter physics using f-mode oscillations in neutron stars
- New covariant density functionals of nuclear matter for compact star simulations
- Thermodynamics of Hot Neutron Stars and Universal Relations
- Non-radial oscillations in newly born compact star considering effects of phase transition
- Bayesian constraints on covariant density functional equations of state of compact stars with new NICER mass-radius measurements
- Bayesian inferences on covariant density functionals from multimessenger astrophysical data: Nucleonic models
- Hyperonic uncertainties in neutron stars, mergers and supernovae
- Investigating the role of nuclear parameters on oscillation modes in hot Neutron Stars
- Hyperons and 's in rotating protoneutron stars: Global properties