Role of $\Delta$s in determining the properties of Neutron Stars in parameterized hydrostatic equilibrium

Abstract

The possible existence of $\Delta$ resonances is inspected in the cold dense matter of neutron star (NS) core in presence of the hyperons. The diverse effects of variation in $\Delta$ mass on their formation and the equation of state (EoS) are studied in this work with an effective chiral model and the resultant NS properties are calculated with the help of parameterized Tolman-Oppenheimer-Volkoff equations (PTOV) to bring out the two important features of pressure in the context of massive NSs. The $\Delta$ puzzle is re-explored and resolved taking into account the concept of modified/parameterized inertial pressure and self-gravity in case of massive pulsars like PSR J1614-2230 and PSR J0348-0432. It is seen that although the presence of exotic matter like the hyperons and the $\Delta$s softens the EoS considerably, their presence in massive NSs can be successfully explained with the theory of parameterized hydrostatic equilibrium conditions. The results of this work also satisfy the constraints on $R_{1.4}$ and $R_{1.6}$ from the gravitational wave (GW170817) detection of binary NS merger. The constraint on baryonic mass from PSR J0737-3039 is also satisfied with the solutions of the PTOV equations for all the $\Delta$ masses considered.

arXiv comment24 pages, 9 figures

References in corpus (97)

• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• A Massive Pulsar in a Compact Relativistic Binary
• Determination of the Equation of State of Dense Matter
• Neutron Star Observations: Prognosis for Equation of State Constraints
• An increased estimate of the merger rate of double neutron stars from observations of a highly relativistic system
• Constraints on the symmetry energy and neutron skins from experiments and theory
• Chern-Simons Modified General Relativity
• New constraints on radii and tidal deformabilities of neutron stars from GW170817
• The NANOGrav Nine-year Data Set: Mass and Geometric Measurements of Binary Millisecond Pulsars
• Tensor-scalar gravity and binary-pulsar experiments
• Neutron-star radius constraints from GW170817 and future detections
• The relativistic pulsar-white dwarf binary PSR J1738+0333 II. The most stringent test of scalar-tensor gravity
• Relativistic Mean-Field Hadronic Models under Nuclear Matter Constraints
• Neutron skins and neutron stars in the multi-messenger era
• The Skyrme Interaction in finite nuclei and nuclear matter
• f(R) Gravity and Chameleon Theories
• Hyperons and massive neutron stars: the role of hyperon potentials
• The Mass-Radius relation for Neutron Stars in $f(R)$ gravity
• Composition and stability of hybrid stars with hyperons and quark color-superconductivity
• Quark Matter In Massive Compact Stars
• Properties of Strange Hadronic Matter in Bulk and in Finite Systems
• Proto-Neutron and Neutron Stars in a Chiral SU(3) Model
• Constraints on Perturbative f(R) Gravity via Neutron Stars
• Maximum mass of neutron stars and strange neutron-star cores
• Incompressibility in finite nuclei and nuclear matter
• The realistic models of relativistic stars in f(R) = R + alpha R^2 gravity
• Spontaneous Scalarization with Massive Fields
• The Massive Pulsar PSR J1614-2230: Linking Quantum Chromodynamics, Gamma-ray Bursts, and Gravitational Wave Astronomy
• I-Love-Q, Spontaneously: Slowly Rotating Neutron Stars in Scalar-Tensor Theories
• Cold uniform matter and neutron stars in the quark-mesons-coupling model
• Constraining the nuclear equation of state at subsaturation densities
• Neutron Stars in Rastall Gravity
• Implications of the measurement of pulsars with two solar masses for quark matter in compact stars and HIC. A NJL model case study
• Non-perturbative and self-consistent models of neutron stars in R-squared gravity
• Neutron stars in general second order scalar-tensor theory: the case of non-minimal derivative coupling
• Equation of state of hypernuclear matter: impact of hyperon--scalar-meson couplings
• The Double Pulsar J0737--3039: Testing the Neutron Star Equation of State
• Aspects of Chiral Symmetry
• Slowly rotating neutron stars in scalar-tensor theories with a massive scalar field
• Non-rotating and rotating neutron stars in the extended field theoretical model
• New Constraint on Scalar Gauss-Bonnet Gravity and a Possible Explanation for the Excess of the Orbital Decay Rate in a Low-Mass X-ray Binary
• Slowly-rotating stars and black holes in dynamical Chern-Simons gravity
• Competition between delta isobars and hyperons and properties of compact stars
• Stability Analysis of Spherically Symmetric Star in Scalar-Tensor Theories of Gravity
• Constraining hypernuclear density functional with $\Lambda$-hypernuclei and compact stars
• Hypernuclear matter in a complete SU(3) symmetry group
• Neutron star transition to strong-scalar-field state in tensor scalar gravity
• Neutron star equation of state from the quark level in the light of GW170817
• Critical Density and Impact of $\Delta (1232)$ Resonance Formation in Neutron Stars
• Rapidly Rotating Neutron Stars in Dilatonic Einstein-Gauss-Bonnet Theory
• Rapidly rotating neutron stars in $R$-squared gravity
• On spontaneous scalarization
• Neutron stars in Horndeski gravity
• Quark matter nucleation in neutron stars and astrophysical implications
• Relativistic stars in scalar-tensor theories with disformal coupling
• Neutron stars structure in the context of massive gravity
• Delta isobars in relativistic mean-field models with $\sigma$-scaled hadron masses and couplings
• Effects of Fock term, tensor coupling and baryon structure variation on a neutron star
• Strangeness in the cores of neutron stars
• Neutron stars with small radii -- the role of delta resonances
• Hot and dense hadronic matter in an effective mean field approach
• $\Delta$ (1232) effects in density-dependent relativistic Hartree-Fock theory and neutron stars
• Hyperon Puzzle, Hadron-Quark Crossover and Massive Neutron Stars
• Equation of state for neutron stars with hyperons and quarks in relativistic Hartree-Fock approximation
• Optimization of relativistic mean field model for finite nuclei to neutron star matter
• Constraining Parity Violation in Gravity with Measurements of Neutron-Star Moments of Inertia
• QCD sum rules for $\Delta$ isobar in nuclear matter
• Existence of hyperons in the pulsar PSRJ1614-2230
• Compact objects in Horndeski gravity
• Mass bounds for compact spherically symmetric objects in generalized gravity theories
• Finite-size effects on the hadron-quark phase transition in neutron stars
• What does a measurement of mass and/or radius of a neutron star constrain: Equation of state or gravity?
• Equilibrium and stability of relativistic stars in extended theories of gravity
• Constraints on the relativistic mean field of $\Delta$-isobar in nuclear matter
• On stability of a neutron star system in Palatini gravity
• On the uncertainty of hyperon couplings and the electrochemical potential in neutron star matter
• Hyperon Puzzle of Neutron Stars with Skyrme Force Models
• Post-Tolman-Oppenheimer-Volkoff formalism for relativistic stars
• Moment of inertia -- compactness universal relations in scalar-tensor theories and ${\mathcal{R}}^2$ gravity
• Neutron star matter with strange interactions in a relativistic quark model
• SU(2) Chiral sigma model and the properties of neutron stars
• The influence of strength of hyperon-hyperon interactions on neutron star properties
• Neutron stars in generalized f(R) gravity
• Dense stellar matter with trapped neutrinos under strong magnetic fields
• Hot Nuclear Matter in Asymmetry Chiral Sigma Model
• Role of higher order couplings in the presence of kaons in relativistic mean field description of neutron stars
• Hyperon star in a modified quark meson coupling model
• On attributes of a Rotating Neutron star with a Hyperon core
• Constraints on nuclear matter parameters of an Effective Chiral Model
• Astrophysical applications of the post-Tolman-Oppenheimer-Volkoff formalism
• Massive neutron stars with hyperonic core : a case study with the IUFSU model
• Photoabsorption off nuclei with self consistent vertex corrections
• Effects of hadron-quark phase transition on properties of Neutron Stars
• Properties of Neutron Stars with hyperon cores in parameterized hydrostatic conditions
• Higher Toda Mechanics and Spectral Curves
• Deconfinement of non-strange hadronic matter with nucleons and $\Delta$ baryons to quark matter in neutron stars
• The effect of inclusion of $\Delta$ resonances in relativistic mean-field model with scaled hadron masses and coupling constants

Cited by in corpus (5)

• Nuclear matter at finite temperature and static properties of proto-neutron star
• Properties of Hybrid Stars with Density Dependent Bag Model
• Variation of delta baryon mass and hybrid star properties in static and rotating conditions
• Estimation of transport coefficients of dense hadronic and quark matter
• A study of the elastic $\pi N$ scattering at finite baryon density