Relativistic mean field model for ultra-compact low mass neutron star of HESS J1731-347

Abstract

The recent observation of the object HESS J1731-347 suggests the existence of a very light and very compact neutron star being a challenge for commonly used equation of state for dense matter. In this work we present a relativistic mean field model enriched with meson crossing terms among isovector and isoscalar mesons. Such interactions particularly dominate the behavior of the symmetry energy and accounts for small size of compact star radius. The proposed model fulfill the recent constraints concerning the symmetry energy slope and state-of-the-art compact stars constraints derived from the NICER measurements of PSR J0030+0451 and PSR J0740+6620 pulsars as well as from the GW170817 event and its associated electromagnetic counterparts AT2017gfo/GRB170817A.

5 pages, 4 figures

References in corpus (22)

• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• Estimating distances from parallaxes. V: Geometric and photogeometric distances to 1.47 billion stars in Gaia Early Data Release 3
• GW190814: Gravitational Waves from the Coalescence of a 23 M${}_{\odot }$ Black Hole with a 2.6 M${}_{\odot }$ Compact Object
• PSR J0030+0451 Mass and Radius from NICER Data and Implications for the Properties of Neutron Star Matter
• Tidal Love numbers of neutron stars
• Accurate Determination of the Neutron Skin Thickness of ${}^{208}$Pb through Parity-Violation in Electron Scattering
• Neutron-star radius constraints from GW170817 and future detections
• Implications of PREX-II on the equation of state of neutron-rich matter
• GW190814: Impact of a 2.6 solar mass neutron star on nucleonic equations of state
• A lower bound on the maximum mass if the secondary in GW190814 was once a rapidly spinning neutron star
• Probing the Symmetry Energy with the Spectral Pion Ratio
• Information content of the parity-violating asymmetry in ${}^{208}$Pb
• Constraints on Nuclear Symmetry Energy Parameters
• Neutron skin thickness of heavy nuclei with $\alpha$-particle correlations and the slope of the nuclear symmetry energy
• Combined theoretical analysis of the parity-violating asymmetry for ${}^{48}$Ca and ${}^{208}Pb$
• Decoding the Density Dependence of the Nuclear Symmetry Energy
• Do Central Compact Objects have Carbon Atmospheres?
• Asymmetric nuclear matter in relativistic mean-field models with isoscalar- and isovector-meson mixing
• Anisotropic Strange Stars in the Spotlight: Unveiling Constraints through Observational Data
• Nuclear and Hybrid Equations of State in Light of the Low-Mass Compact Star in HESS J1731-347
• Baryonic models of ultra-low-mass compact stars for the central compact object in HESS J1731-347
• Multilayer neutron stars with scalar mesons crossing term

Cited by in corpus (17)

• Hybrid stars in light of the HESS J1731-347 remnant and the PREX-II experiment
• Could a slow stable hybrid star explain the central compact object in HESS~J1731-347?
• Confronting new NICER mass-radius measurements with phase transition in dense matter and twin compact stars
• Speed of sound bounds and first-order phase transitions in compact stars
• Modern nuclear and astrophysical constraints of dense matter in a renormalized chiral approach
• Two-flavor color superconducting quark stars may not exist
• How the HESS J1731-347 event could be explained using ${\mathbf{K}}^{-}$ condensation
• Bayesian inferences on covariant density functionals from multimessenger astrophysical data: Nucleonic models
• Is the central compact object in HESS J1731-347 a hybrid star with a quark core? An analysis with the constant speed of sound parametrization
• Spherically symmetric anisotropic strange stars
• Analyzing the dense matter equation of states in the light of the compact object HESS J1731-347
• Role of local anisotropy in hybrid stars
• Exploring $\Delta$-resonance in neutron stars: implications from astrophysical and nuclear observations
• Confronting recent light compact star observations with color-flavor locked quark matter
• Novel features of asymmetric nuclear matter from terrestrial experiments and astrophysical observations of neutron stars
• Properties of the Object HESS J1731-347 as a Twin Compact Star
• Examining the possibility of a thick crust in the compact stellar object HESS J1731-347