Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

A Statistical Approach to Neutron Star Crust-Core Transition Density and Pressure

Version 1 : Received: 5 November 2023 / Approved: 6 November 2023 / Online: 7 November 2023 (11:39:19 CET)

A peer-reviewed article of this Preprint also exists.

Bednarek, I.; Olchawa, W.; Sładkowski, J.; Syska, J. A Statistical Approach to Neutron Stars’ Crust–Core Transition Density and Pressure. Entropy 2023, 25, 1652. Bednarek, I.; Olchawa, W.; Sładkowski, J.; Syska, J. A Statistical Approach to Neutron Stars’ Crust–Core Transition Density and Pressure. Entropy 2023, 25, 1652.

Abstract

In this paper, a regression model between neutron star crust-core pressure and the symmetry energy characteristics was estimated using the Akaike information criterion and the adjusted coefficient of determination Radj2. Based on the obtained regression function, the most probable value of the transition density, which should characterize the crust-core environment of the sought physical neutron star model, was determined. An anti-correlation was found between this transition density and the main characteristic of the symmetry energy, i.e., its slope L.

Keywords

neutron star; symmetry energy; nuclear matter modeling

Subject

Physical Sciences, Astronomy and Astrophysics

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