Orbital dynamics of the solar basin
Abstract We study the dynamics of the solar basin — the accumulated population of weakly-interacting particles on bound orbits in the Solar System. We focus on particles starting off on Sun-crossing orbits, corresponding to initial conditions of production inside the Sun, and investigate their evolu...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-12-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP12(2024)007 |
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| author | Cara Giovanetti Robert Lasenby Ken Van Tilburg |
| author_facet | Cara Giovanetti Robert Lasenby Ken Van Tilburg |
| author_sort | Cara Giovanetti |
| collection | DOAJ |
| description | Abstract We study the dynamics of the solar basin — the accumulated population of weakly-interacting particles on bound orbits in the Solar System. We focus on particles starting off on Sun-crossing orbits, corresponding to initial conditions of production inside the Sun, and investigate their evolution over the age of the Solar System. A combination of analytic methods, secular perturbation theory, and direct numerical integration of orbits sheds light on the long- and short-term evolution of a population of test particles orbiting the Sun and perturbed by the planets. Our main results are that the effective lifetime of a solar basin at Earth’s location is τ eff = 1.20 ± 0.09 Gyr, and that there is annual (semi-annual) modulation of the basin density with known phase and amplitude at the fractional level of 6.5% (2.2%). These results have important implications for direct detection searches of solar basin particles, and the strong temporal modulation signature yields a robust discovery channel. Our simulations can also be interpreted in the context of gravitational capture of dark matter in the Solar System, with consequences for any dark-matter phenomenon that may occur below the local escape velocity. |
| format | Article |
| id | doaj-art-47eec6769b39489b85f3b4d79564fae7 |
| institution | OA Journals |
| issn | 1029-8479 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-47eec6769b39489b85f3b4d79564fae72025-08-20T02:31:54ZengSpringerOpenJournal of High Energy Physics1029-84792024-12-0120241216110.1007/JHEP12(2024)007Orbital dynamics of the solar basinCara Giovanetti0Robert Lasenby1Ken Van Tilburg2Center for Cosmology and Particle Physics, Department of Physics, New York UniversityStanford Institute for Theoretical Physics, Stanford UniversityCenter for Cosmology and Particle Physics, Department of Physics, New York UniversityAbstract We study the dynamics of the solar basin — the accumulated population of weakly-interacting particles on bound orbits in the Solar System. We focus on particles starting off on Sun-crossing orbits, corresponding to initial conditions of production inside the Sun, and investigate their evolution over the age of the Solar System. A combination of analytic methods, secular perturbation theory, and direct numerical integration of orbits sheds light on the long- and short-term evolution of a population of test particles orbiting the Sun and perturbed by the planets. Our main results are that the effective lifetime of a solar basin at Earth’s location is τ eff = 1.20 ± 0.09 Gyr, and that there is annual (semi-annual) modulation of the basin density with known phase and amplitude at the fractional level of 6.5% (2.2%). These results have important implications for direct detection searches of solar basin particles, and the strong temporal modulation signature yields a robust discovery channel. Our simulations can also be interpreted in the context of gravitational capture of dark matter in the Solar System, with consequences for any dark-matter phenomenon that may occur below the local escape velocity.https://doi.org/10.1007/JHEP12(2024)007Axions and ALPsNew Light ParticlesParticle Nature of Dark MatterSpecific BSM Phenomenology |
| spellingShingle | Cara Giovanetti Robert Lasenby Ken Van Tilburg Orbital dynamics of the solar basin Journal of High Energy Physics Axions and ALPs New Light Particles Particle Nature of Dark Matter Specific BSM Phenomenology |
| title | Orbital dynamics of the solar basin |
| title_full | Orbital dynamics of the solar basin |
| title_fullStr | Orbital dynamics of the solar basin |
| title_full_unstemmed | Orbital dynamics of the solar basin |
| title_short | Orbital dynamics of the solar basin |
| title_sort | orbital dynamics of the solar basin |
| topic | Axions and ALPs New Light Particles Particle Nature of Dark Matter Specific BSM Phenomenology |
| url | https://doi.org/10.1007/JHEP12(2024)007 |
| work_keys_str_mv | AT caragiovanetti orbitaldynamicsofthesolarbasin AT robertlasenby orbitaldynamicsofthesolarbasin AT kenvantilburg orbitaldynamicsofthesolarbasin |