Cooling Process of White Dwarf Stars in Palatini <i>f</i>(<i>R</i>) Gravity
A simple cooling model of white dwarf stars is re-analyzed in Palatini <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>f</mi><mo>(</mo><mi>R</mi><mo>)</mo&g...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Universe |
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| Online Access: | https://www.mdpi.com/2218-1997/8/12/647 |
| _version_ | 1827636710584877056 |
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| author | Surajit Kalita Lupamudra Sarmah Aneta Wojnar |
| author_facet | Surajit Kalita Lupamudra Sarmah Aneta Wojnar |
| author_sort | Surajit Kalita |
| collection | DOAJ |
| description | A simple cooling model of white dwarf stars is re-analyzed in Palatini <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>f</mi><mo>(</mo><mi>R</mi><mo>)</mo></mrow></semantics></math></inline-formula> gravity. Modified gravity affects the white dwarf structures and consequently their ages. We find that the resulting super-Chandrasekhar white dwarfs need more time to cool down than sub-Chandrasekhar ones, or when compared to the Newtonian models. |
| first_indexed | 2024-03-09T15:46:34Z |
| format | Article |
| id | doaj.art-3fcf658b43ea41db892c6474ca9d509b |
| institution | Directory Open Access Journal |
| issn | 2218-1997 |
| language | English |
| last_indexed | 2024-03-09T15:46:34Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Universe |
| spelling | doaj.art-3fcf658b43ea41db892c6474ca9d509b2023-11-24T18:29:29ZengMDPI AGUniverse2218-19972022-12-0181264710.3390/universe8120647Cooling Process of White Dwarf Stars in Palatini <i>f</i>(<i>R</i>) GravitySurajit Kalita0Lupamudra Sarmah1Aneta Wojnar2High Energy Physics, Cosmology & Astrophysics Theory (HEPCAT) Group, Department of Mathematics & Applied Mathematics, University of Cape Town, Cape Town 7700, South AfricaIndian Institute of Astrophysics, Bengaluru 560034, IndiaLaboratory of Theoretical Physics, Institute of Physics, University of Tartu, W. Ostwaldi 1, 50411 Tartu, EstoniaA simple cooling model of white dwarf stars is re-analyzed in Palatini <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>f</mi><mo>(</mo><mi>R</mi><mo>)</mo></mrow></semantics></math></inline-formula> gravity. Modified gravity affects the white dwarf structures and consequently their ages. We find that the resulting super-Chandrasekhar white dwarfs need more time to cool down than sub-Chandrasekhar ones, or when compared to the Newtonian models.https://www.mdpi.com/2218-1997/8/12/647cooling processwhite dwarfmodified gravityChandrasekhar limit |
| spellingShingle | Surajit Kalita Lupamudra Sarmah Aneta Wojnar Cooling Process of White Dwarf Stars in Palatini <i>f</i>(<i>R</i>) Gravity Universe cooling process white dwarf modified gravity Chandrasekhar limit |
| title | Cooling Process of White Dwarf Stars in Palatini <i>f</i>(<i>R</i>) Gravity |
| title_full | Cooling Process of White Dwarf Stars in Palatini <i>f</i>(<i>R</i>) Gravity |
| title_fullStr | Cooling Process of White Dwarf Stars in Palatini <i>f</i>(<i>R</i>) Gravity |
| title_full_unstemmed | Cooling Process of White Dwarf Stars in Palatini <i>f</i>(<i>R</i>) Gravity |
| title_short | Cooling Process of White Dwarf Stars in Palatini <i>f</i>(<i>R</i>) Gravity |
| title_sort | cooling process of white dwarf stars in palatini i f i i r i gravity |
| topic | cooling process white dwarf modified gravity Chandrasekhar limit |
| url | https://www.mdpi.com/2218-1997/8/12/647 |
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