A Statistical Approach to Neutron Stars’ Crust–Core Transition Density and Pressure
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 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" di...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-12-01
|
| Series: | Entropy |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1099-4300/25/12/1652 |
| _version_ | 1827574832944906240 |
|---|---|
| author | Ilona Bednarek Wiesław Olchawa Jan Sładkowski Jacek Syska |
| author_facet | Ilona Bednarek Wiesław Olchawa Jan Sładkowski Jacek Syska |
| author_sort | Ilona Bednarek |
| collection | DOAJ |
| description | 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 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msubsup><mi>R</mi><mrow><mi>a</mi><mi>d</mi><mi>j</mi></mrow><mn>2</mn></msubsup></semantics></math></inline-formula>. The most probable value of the transition density, which should characterize the crust–core environment of the sought physical neutron star model, was determined based on the obtained regression function. An anti-correlation was found between this transition density and the main characteristic of the symmetry energy, i.e., its slope <i>L</i>. |
| first_indexed | 2024-03-08T20:47:43Z |
| format | Article |
| id | doaj.art-53ab6aa414e34359a3398b462ad26abf |
| institution | Directory Open Access Journal |
| issn | 1099-4300 |
| language | English |
| last_indexed | 2024-03-08T20:47:43Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Entropy |
| spelling | doaj.art-53ab6aa414e34359a3398b462ad26abf2023-12-22T14:07:30ZengMDPI AGEntropy1099-43002023-12-012512165210.3390/e25121652A Statistical Approach to Neutron Stars’ Crust–Core Transition Density and PressureIlona Bednarek0Wiesław Olchawa1Jan Sładkowski2Jacek Syska3Institute of Physics, University of Silesia, 75 Pułku Piechoty 1, 41-500 Chorzów, PolandInstitute of Physics, University of Opole, Oleska 48, 45-052 Opole, PolandInstitute of Physics, University of Silesia, 75 Pułku Piechoty 1, 41-500 Chorzów, PolandInstitute of Physics, University of Silesia, 75 Pułku Piechoty 1, 41-500 Chorzów, PolandIn 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 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msubsup><mi>R</mi><mrow><mi>a</mi><mi>d</mi><mi>j</mi></mrow><mn>2</mn></msubsup></semantics></math></inline-formula>. The most probable value of the transition density, which should characterize the crust–core environment of the sought physical neutron star model, was determined based on the obtained regression function. An anti-correlation was found between this transition density and the main characteristic of the symmetry energy, i.e., its slope <i>L</i>.https://www.mdpi.com/1099-4300/25/12/1652neutron starsymmetry energynuclear matter modeling |
| spellingShingle | Ilona Bednarek Wiesław Olchawa Jan Sładkowski Jacek Syska A Statistical Approach to Neutron Stars’ Crust–Core Transition Density and Pressure Entropy neutron star symmetry energy nuclear matter modeling |
| title | A Statistical Approach to Neutron Stars’ Crust–Core Transition Density and Pressure |
| title_full | A Statistical Approach to Neutron Stars’ Crust–Core Transition Density and Pressure |
| title_fullStr | A Statistical Approach to Neutron Stars’ Crust–Core Transition Density and Pressure |
| title_full_unstemmed | A Statistical Approach to Neutron Stars’ Crust–Core Transition Density and Pressure |
| title_short | A Statistical Approach to Neutron Stars’ Crust–Core Transition Density and Pressure |
| title_sort | statistical approach to neutron stars crust core transition density and pressure |
| topic | neutron star symmetry energy nuclear matter modeling |
| url | https://www.mdpi.com/1099-4300/25/12/1652 |
| work_keys_str_mv | AT ilonabednarek astatisticalapproachtoneutronstarscrustcoretransitiondensityandpressure AT wiesławolchawa astatisticalapproachtoneutronstarscrustcoretransitiondensityandpressure AT jansładkowski astatisticalapproachtoneutronstarscrustcoretransitiondensityandpressure AT jaceksyska astatisticalapproachtoneutronstarscrustcoretransitiondensityandpressure AT ilonabednarek statisticalapproachtoneutronstarscrustcoretransitiondensityandpressure AT wiesławolchawa statisticalapproachtoneutronstarscrustcoretransitiondensityandpressure AT jansładkowski statisticalapproachtoneutronstarscrustcoretransitiondensityandpressure AT jaceksyska statisticalapproachtoneutronstarscrustcoretransitiondensityandpressure |