Non-rotating and rotating neutron stars in the extended field theoretical model

Abstract

We study the properties of non-rotating and rotating neutron stars for a new set of equations of state (EOSs) with different high density behaviour obtained using the extended field theoretical model. The high density behaviour for these EOSs are varied by varying the $\omega -$meson self-coupling and hyperon-meson couplings in such a way that the quality of fit to the bulk nuclear observables, nuclear matter incompressibility coefficient and hyperon-nucleon potential depths remain practically unaffected. We find that the largest value for maximum mass for the non-rotating neutron star is $2.1M_{\odot }$. The radius for the neutron star with canonical mass is $12.8-14.1$ km provided only those EOSs are considered for which maximum mass is larger than $1.6M_{\odot }$ as it is the lower bound on the maximum mass measured so far. Our results for the very recently discovered fastest rotating neutron star indicate that this star is supra massive with mass $1.7-2.7M_{\odot }$ and circumferential equatorial radius $12-19$ km.

28 pages, 12 figures. Phys. Rev. C (in press)

References in corpus (5)

• Evidence for 1122 Hz X-Ray Burst Oscillations from the Neutron-Star X-Ray Transient XTE J1739-285
• Exploring the extended density-dependent Skyrme effective forces for normal and isospin-rich nuclei to neutron stars
• Constraints on the dense matter EOS from the measurements of PSR J0737-3039A moment of inertia and PSR J0751+1807 mass
• Effects of $\omega$ meson self-coupling on the properties of finite nuclei and neutron stars
• Rotation at 1122 Hz and the neutron star structure

Cited by in corpus (40)

• Relativistic Mean-Field Hadronic Models under Nuclear Matter Constraints
• Origin of the neutron skin thickness of 208Pb in nuclear mean-field models
• Strong correlations of neutron star radii with the slopes of nuclear matter incompressibility and symmetry energy at saturation
• Asymmetric nuclear matter and neutron-skin in extended relativistic mean field model
• Spanning the full range of neutron star properties within a microscopic description
• Impact of the equation of state on $f$- and $p$- mode oscillations of neutron stars
• Role of vector self-interaction in Neutron Star properties
• Magnetars and Axion-like Particles: Probes with the Hard X-ray Spectrum
• Low-energy nuclear physics and global neutron star properties
• Compiled Properties of Nucleonic Matter and Nuclear and Neutron Star Models from Non-Relativistic and Relativistic Interactions
• Heavy Magnetic Neutron Stars
• Effect of isovector scalar meson on equation of state of dense matter within relativistic mean field model
• Thermal Relaxation of Dark Matter Admixed Neutron Star
• Hyperon star in a modified quark meson coupling model
• CREX- and PREX-II-motivated relativistic interactions and their implications for the bulk properties of nuclear matter and neutron stars
• Speed of Sound in Hybrid Stars and the Role of Bag Pressure in the Emergence of Special Points on M-R Variation of Hybrid Stars
• Relativistic Mean Field Model parameterizations in the light of GW170817, GW190814, and PSR J0740 + 6620
• Stable configurations of hybrid stars with colour-flavour-locked core
• Observational constraint from the heaviest pulsar PSR J0952-0607 on the equation of state of dense matter in relativistic mean field model
• Relativistic approach for the determination of nuclear and neutron star properties in consideration of PREX-II results
• A Detailed Analysis of the Special Points on $M-R$ Solutions of Hybrid (Twin) Stars
• Revisiting the thermal relaxation of neutron stars
• Decoding rotating neutron stars: Role of the symmetry energy slope
• Nuclear fragmentation reactions as a probe of neutron skins in nuclei
• Core-crust transition properties of neutron stars within systematically varied extended relativistic mean-field model
• The nuclear symmetry energy and the neutron skin thickness in nuclei
• Neutron star crustal properties from relativistic mean-field models and bulk parameters effects
• Dark energy effects on realistic neutron stars
• Role of $\Delta$s in determining the properties of Neutron Stars in parameterized hydrostatic equilibrium
• Strongly interacting matter in extreme magnetic fields
• Effect of Dark matter and $\sigma$-cut potential on radial and non-radial oscillation modes in neutron stars
• Probing Fundamental Physics with Gravitational Waves
• Projecting the likely importance of weak-interaction-driven bulk viscosity in neutron star mergers
• New solution to the hyperon puzzle of neutron stars: Quantum many-body effects
• Can a hybrid star with constant sound speed parametrization explain the new NICER mass-radius measurements ?
• General relativistic calculation of magnetic field and Power loss for a misaligned pulsar
• Correlations in the properties of static and rapidly rotating compact stars
• Inferring neutron star properties through gravitational waves from r-modes and their relativistic counterparts
• Effects of Nontrivial Topology on Neutron Star Rotation and its Potential Observational Implications
• Topological Shell Structures in Neutron Stars: Effects on Equilibrium, Oscillations, and Gravitational-Wave Signatures