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Nuclear symmetry energy effects on neutron stars properties

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Published: Jan 1, 2020
DOI: https://doi.org/10.12681/hnps.2629
Ch. C. Moustakidis
AUTh
V. P. Psonis
AUTh
S. E. Massen
AUTh
Abstract

We construct a class of nuclear equations of state based on a schematic potential model, that originates from the work of Prakash et. al. [1], which reproduce the results of most microscopic calculations. The equations of state are used as input for solving the Tolman- Oppenheimer-Volkov equations for corresponding neutron stars. The potential part contribution of the symmetry energy to the total energy is parameterized in a generalized form both for low and high values of the baryon density. The obtained nuclear equations of state are applied for the systematic study of the global properties of a neutron star (masses, radii and composition). We also address on the problem of the existence of correlation between the pressure near the saturation density and the radius.

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References
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