Investigating the role of nuclear parameters in Neutron Star oscillations: a model comparison
arXiv:2412.04373 · doi:10.1016/j.nuclphysa.2025.123267
Abstract
Recent studies based on the relativistic mean field (RMF) model found certain nuclear empirical parameters, in particular the nucleon effective mass, to be strongly correlated with observable properties of Neutron Stars (NSs), such as the frequencies of mode oscillations. This shows the potential to constrain the values of effective mass from future observations of modes. One of our primary goals of this work is to investigate whether such correlations are physical or an artifact of the underlying nuclear model. To test this, we perform a comparative study of the correlations between NS astrophysical observables and nuclear physics parameters using two different equation of state models based on RMF theory and non-relativistic Meta-Modelling (MM) scheme. The nuclear meta-model does not assume any underlying nuclear model and therefore allows us to test the model dependence of the results. The calculations of the mode characteristics are performed within the relativistic Cowling approximation. We use state-of-the-art nuclear microscopic calculations at low density and multi-messenger astrophysical data at high-density within a Bayesian-inspired scheme to constrain the parameter space of the nuclear models. From the posterior distribution, we probe the underlying correlations among nuclear parameters and with NS observables. We find that the correlation between the symmetry energy and its slope is physical, while that of the nucleon effective mass with NS observables is model-dependent. The study shows that the effective mass governs the high density behaviour in RMF models, while in the MM it is controlled by the higher order saturation parameters, and hence probes the possibility of constraining them from future -mode observations. The findings of this investigation are interesting both for astrophysics as well as nuclear physics communities.
23 pages, 15 figures
References in corpus (47)
- 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
- Tidal Love numbers of neutron stars
- Constraining neutron star tidal Love numbers with gravitational wave detectors
- A NICER View of the Massive Pulsar PSR J0740+6620 Informed by Radio Timing and XMM-Newton Spectroscopy
- Refined Mass and Geometric Measurements of the High-Mass PSR J0740+6620
- Constraints on a phenomenologically parameterized neutron-star equation of state
- Nuclear symmetry energy probed by neutron skin thickness of nuclei
- Relativistic Mean-Field Hadronic Models under Nuclear Matter Constraints
- Neutron skin of 208Pb, nuclear symmetry energy, and the parity radius experiment
- Building relativistic mean field models for finite nuclei and neutron stars
- A NICER View of the Nearest and Brightest Millisecond Pulsar: PSR J0437$\unicode{x2013}$4715
- Neutron Stars and the Nuclear Equation of State
- Core-crust transition in neutron stars: predictivity of density developments
- An updated mass-radius analysis of the 2017-2018 NICER data set of PSR J0030+0451
- Impact of the PSR J0740+6620 radius constraint on the properties of high-density matter
- Neutron skin thickness in droplet model with surface width dependence: indications of softness of the nuclear symmetry energy
- The Radius of the High-mass Pulsar PSR J0740+6620 with 3.6 yr of NICER Data
- Neutron matter from chiral two- and three-nucleon calculations up to NLO
- Signatures of hadron-quark mixed phase in gravitational waves
- Searches for Continuous-Wave Gravitational Radiation
- Confronting gravitational-wave observations with modern nuclear physics constraints
- Asymmetric nuclear matter and neutron-skin in extended relativistic mean field model
- Nuclear equation of state for arbitrary proton fraction and temperature based on chiral effective field theory and a Gaussian process emulator
- Relativistic description of dense matter equation of state and compatibility with neutron star observables: a Bayesian approach
- Determination of the Equation of State from Nuclear Experiments and Neutron Star Observations
- Impact of PREX-II and combined Radio/NICER/XMM-Newton's mass-radius measurement of PSRJ0740+6620 on the dense matter equation of state
- Searches for Gravitational Waves from Known Pulsars at Two Harmonics in the Second and Third LIGO-Virgo Observing Runs
- Narrowband searches for continuous and long-duration transient gravitational waves from known pulsars in the LIGO-Virgo third observing run
- General relativistic treatment of -mode oscillations of hyperonic stars
- Implications of the mass M of PSR~J0740+6620 on the Equation of State of Super-Dense Neutron-Rich Nuclear Matter
- Effect of hyperons on f-mode oscillations in Neutron Stars
- 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
- Non-radial Oscillation Modes of Compact Stars with a Crust
- Multi-physics constraints at different densities to probe nuclear symmetry energy in hyperonic neutron stars
- Role of vector self-interaction in Neutron Star properties
- Nucleonic metamodelling in light of multimessenger, PREX-II and CREX data
- Bayesian Inference of the Dense Matter Equation of State built upon Covariant Density Functionals
- Constraining nuclear parameters using Gravitational waves from f-mode Oscillations in Neutron Stars
- Inference of neutron-star properties with unified crust-core equations of state for parameter estimation
- Implications of comprehensive nuclear and astrophysics data on the equations of state of neutron star matter
- Bayesian Inference of Fine-Features of Nuclear Equation of State from Future Neutron Star Radius Measurements to 0.1km Accuracy
- Frequencies of - and -oscillation modes in cold and hot compact stars
- Imprints of the nuclear symmetry energy slope in gravitational wave signals emanating from neutron stars
- Cost of inferred nuclear parameters towards the f-mode dynamical tide in binary neutron stars
- Unraveling the global behavior of equation of state by explicit finite nuclei constraints