End equilibrium state of a spherical gravitational collapse in the presence of matter and scalar field
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arXiv
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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866913680480796672 |
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| author | Debnath, Debanjan Dey, Dipanjan Bhattacharya, Kaushik |
| author_facet | Debnath, Debanjan Dey, Dipanjan Bhattacharya, Kaushik |
| contents | We explore the possibilities of modeling a spherically symmetric static spacetime that can emerge as the end state of gravitational collapse, by considering it to be seeded by a composite fluid made of matter and a scalar field. In this scenario, the matter represents dark matter, while the scalar field represents dark energy. On certain scales, dark energy is believed to significantly influence the structure formation of dark matter. Various models describe the possible impacts of dark energy on structure formation under different scenarios. By investigating an inhomogeneous scalar field representing dark energy, coupled with dark matter, we demonstrate that this two-component fluid can seed spacetimes forming the final equilibrium state. We derive solutions for the scalar field and potential for Joshi-Malafarina-Narayan (JMN) spacetimes. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_01110 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | End equilibrium state of a spherical gravitational collapse in the presence of matter and scalar field Debnath, Debanjan Dey, Dipanjan Bhattacharya, Kaushik General Relativity and Quantum Cosmology We explore the possibilities of modeling a spherically symmetric static spacetime that can emerge as the end state of gravitational collapse, by considering it to be seeded by a composite fluid made of matter and a scalar field. In this scenario, the matter represents dark matter, while the scalar field represents dark energy. On certain scales, dark energy is believed to significantly influence the structure formation of dark matter. Various models describe the possible impacts of dark energy on structure formation under different scenarios. By investigating an inhomogeneous scalar field representing dark energy, coupled with dark matter, we demonstrate that this two-component fluid can seed spacetimes forming the final equilibrium state. We derive solutions for the scalar field and potential for Joshi-Malafarina-Narayan (JMN) spacetimes. |
| title | End equilibrium state of a spherical gravitational collapse in the presence of matter and scalar field |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2409.01110 |