Properties of white dwarf with anisotropic pressure in Rainbow gravity
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866917841334173696 |
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| author | Tangphati, Takol Panotopoulos, Grigoris Banerjee, Ayan Pradhan, Anirudh |
| author_facet | Tangphati, Takol Panotopoulos, Grigoris Banerjee, Ayan Pradhan, Anirudh |
| contents | We investigate the properties of anisotropic white dwarf stars within the rainbow gravity adopting for matter content the Chandrasekhar model based on an ideal Fermi gas at zero temperature. We study in detail the effects of the anisotropic factor on stellar mass and radius, the speed of sound, and the relativistic adiabatic index in both radial and tangential directions. We find that causality is never violated, whereas the stability criterion based on the relativistic adiabatic index is not met when the objects are characterized by a positive anisotropic factor close to the Chandrasekhar limit. We present this significant observation here for the first time, to the best of our knowledge. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_12526 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Properties of white dwarf with anisotropic pressure in Rainbow gravity Tangphati, Takol Panotopoulos, Grigoris Banerjee, Ayan Pradhan, Anirudh General Relativity and Quantum Cosmology We investigate the properties of anisotropic white dwarf stars within the rainbow gravity adopting for matter content the Chandrasekhar model based on an ideal Fermi gas at zero temperature. We study in detail the effects of the anisotropic factor on stellar mass and radius, the speed of sound, and the relativistic adiabatic index in both radial and tangential directions. We find that causality is never violated, whereas the stability criterion based on the relativistic adiabatic index is not met when the objects are characterized by a positive anisotropic factor close to the Chandrasekhar limit. We present this significant observation here for the first time, to the best of our knowledge. |
| title | Properties of white dwarf with anisotropic pressure in Rainbow gravity |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2411.12526 |