Crystallized white dwarf stars in scalar-tensor gravity
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arXiv
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| Auteurs principaux: | , , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866916373394882560 |
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| author | Vidal, Sofía Wojnar, Aneta Järv, Laur Doneva, Daniela |
| author_facet | Vidal, Sofía Wojnar, Aneta Järv, Laur Doneva, Daniela |
| contents | We study the effects of massive scalar-tensor theories on the internal properties, crystallization, and cooling process of white dwarf stars that might potentially solve observational tensions. We show that these modified gravity theories alter the inner structure of the star leading to sub-Chandrasekhar mass white dwarfs. This further results in a modification of Debye temperature, ion and electron specific heats. Finally, we find that the cooling process is significantly shortened in scalar-tensor theories leading to reduced cooling ages. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_15937 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Crystallized white dwarf stars in scalar-tensor gravity Vidal, Sofía Wojnar, Aneta Järv, Laur Doneva, Daniela General Relativity and Quantum Cosmology Solar and Stellar Astrophysics We study the effects of massive scalar-tensor theories on the internal properties, crystallization, and cooling process of white dwarf stars that might potentially solve observational tensions. We show that these modified gravity theories alter the inner structure of the star leading to sub-Chandrasekhar mass white dwarfs. This further results in a modification of Debye temperature, ion and electron specific heats. Finally, we find that the cooling process is significantly shortened in scalar-tensor theories leading to reduced cooling ages. |
| title | Crystallized white dwarf stars in scalar-tensor gravity |
| topic | General Relativity and Quantum Cosmology Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2408.15937 |