Self-similar growth of Bose stars
Fuente:
arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| _version_ | 1866910303714803712 |
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| author | Dmitriev, A. S. Levkov, D. G. Panin, A. G. Tkachev, I. I. |
| author_facet | Dmitriev, A. S. Levkov, D. G. Panin, A. G. Tkachev, I. I. |
| contents | We analytically solve the problem of Bose star growth in the bath of gravitationally interacting particles. We find that after nucleation of this object the bath is described by a self-similar solution of kinetic equation. Together with the conservation laws, this fixes mass evolution of the Bose star. Our theory explains, in particular, the slowdown of the star growth at a certain "core-halo" mass, but also predicts formation of heavier and lighter objects in magistral dark matter models. The developed "adiabatic" approach to self-similarity may be of interest for kinetic theory in general. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2305_01005 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Self-similar growth of Bose stars Dmitriev, A. S. Levkov, D. G. Panin, A. G. Tkachev, I. I. Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies Statistical Mechanics High Energy Physics - Phenomenology We analytically solve the problem of Bose star growth in the bath of gravitationally interacting particles. We find that after nucleation of this object the bath is described by a self-similar solution of kinetic equation. Together with the conservation laws, this fixes mass evolution of the Bose star. Our theory explains, in particular, the slowdown of the star growth at a certain "core-halo" mass, but also predicts formation of heavier and lighter objects in magistral dark matter models. The developed "adiabatic" approach to self-similarity may be of interest for kinetic theory in general. |
| title | Self-similar growth of Bose stars |
| topic | Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies Statistical Mechanics High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2305.01005 |