# Neutron Stars: A Novel Equation of State with Induced Surface Tension

@article{Sagun2017NeutronSA, title={Neutron Stars: A Novel Equation of State with Induced Surface Tension}, author={Violetta V. Sagun and Il{\'i}dio Lopes}, journal={The Astrophysical Journal}, year={2017}, volume={850} }

A novel equation of state with the surface tension induced by particles’ interactions was generalized to describe the properties of the neutron stars (NSs). In this equation the interaction between particles occurs via the hard core repulsion by taking into account the proper volumes of particles. Recently, this model was successfully applied to the description of the properties of nuclear and hadron matter created in collisions of nucleons. The new approach is free of causality problems and is…

## 10 Citations

### The Induced Surface Tension Contribution for the Equation of State of Neutron Stars

- PhysicsThe Astrophysical Journal
- 2019

We apply a novel equation of state (EoS) that includes the surface tension contribution induced by interparticle interaction and asymmetry between neutrons and protons, to the study of neutron star…

### Neutron Star Cooling Within the Equation of State With Induced Surface Tension

- Physics
- 2020

We study the thermal evolution of neutron stars described within the equation of state with induced surface tension (IST) that reproduces properties of normal nuclear matter, fulfills the proton flow…

### Neutron stars meet constraints from high and low energy nuclear physics

- PhysicsNuclear Physics A
- 2019

### Hard-Core Radius of Nucleons within the Induced Surface Tension Approach

- PhysicsUniverse
- 2019

We review the recent approach to model the hadronic and nuclear matter equations of state using the induced surface tension concept, which allows one to go far beyond the usual Van der Waals…

### Asteroseismology: Radial oscillations of neutron stars with realistic equation of state

- PhysicsPhysical Review D
- 2020

We study radial oscillations of non-rotating neutron stars (NSs) in four-dimensional General Relativity. The interior of the NS was modelled within a recently proposed multicomponent realistic…

### Equation of State of Quantum Gases Beyond the Van der Waals Approximation

- PhysicsUkrainian Journal of Physics
- 2018

A recently suggested equation of state with the induced surface tension is generalized to the case of quantum gases with mean-field interaction. The self-consistency conditions of such a model and…

### On the desert between neutron star and black hole remnants.

- Physics
- 2018

The occurrence of a desert between neutron star (NS) and black hole (BH) remnants is reviewed. The dependence of stellar remnants on the zero age main sequence (ZAMS) progenitor mass for solar…

### The Origin of the Transverse Radii of Hyperons at the LHC

- Physics
- 2020

Here we show that the effective Gaussian source radii for the proton-hyperon pairs obtained at the LHC follow from the atom-like structure of baryons which is described in the Scale-Symmetric Theory…

### Magnetic Activity of Solar-Type Stars

- Physics
- 2020

Here we described the origin of the magnetic-activity cycles of solar-like cool stars. On the basis of the atom-like structure of baryons, we calculated the ratios of the activity-cycle period to…

## References

SHOWING 1-10 OF 25 REFERENCES

### Hadron Resonance Gas Model for An Arbitrarily Large Number of Different Hard-Core Radii

- Physics
- 2016

We develop a novel formulation of the hadron-resonance gas model which, besides a hard-core repulsion, explicitly accounts for the surface tension induced by the interaction between the particles.…

### A unified equation of state of dense matter and neutron star structure

- Physics
- 2001

An equation of state (EOS) of neutron star matter, describing both the neutron star crust and the liquid core, is calculated. It is based on the eective nuclear interaction SLy of the Skyrme type,…

### The Nuclear Equation of State and Neutron Star Masses

- Physics
- 2012

Neutron stars are valuable laboratories for the study of dense matter. Recent observations have uncovered both massive and low-mass neutron stars and have also set constraints on neutron star radii.…

### Investigation of hadron multiplicities and hadron yield ratios in heavy ion collisions

- Physics
- 2012

Here we thoroughly discuss some weak points of the thermal model which is traditionally used to describe the hadron multiplicities measured in the central nucleus-nucleus collisions. In particularly,…

### A two-solar-mass neutron star measured using Shapiro delay

- PhysicsNature
- 2010

Radio timing observations of the binary millisecond pulsar J1614-2230 that show a strong Shapiro delay signature are presented and the pulsar mass is calculated to be (1.97 ± 0.04)M⊙, which rules out almost all currently proposed hyperon or boson condensate equations of state.

### Determination of the Equation of State of Dense Matter

- PhysicsScience
- 2002

This work analyzed the flow of matter to extract pressures in excess of 1034 pascals, the highest recorded under laboratory-controlled conditions, and ruled out strongly repulsive nuclear equations of state from relativistic mean field theory and weakly repulsive equation of state with phase transitions at densities less than three times that of stable nuclei.

### Equation of state for dense nucleon matter.

- PhysicsPhysical review. C, Nuclear physics
- 1988

The Argonne ${v}_{14}$ plus Urbana VII Hamiltonian produces a softening in the neutron matter equation of state localized around twice nuclear matter density which may indicate a neutral pion condensate.

### Analytical representations of unified equations of state of neutron-star matter

- Physics
- 2004

Analytical representations are derived for two equations of state (EOSs) of neutron-star matter: FPS and SLy. Each of these EOSs is unified, that is, it describes the crust and the core of a neutron…