Probing Dark Matter Interactions with Stellar Motion near Sagittarius A*
Fuente:
arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| Soggetti: | |
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| _version_ | 1866916997813501952 |
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| author | Gustafson, R. Andrew Shoemaker, Ian M. Takhistov, Volodymyr |
| author_facet | Gustafson, R. Andrew Shoemaker, Ian M. Takhistov, Volodymyr |
| contents | Stars orbiting Sgr A* at the Milky Way's center provide a unique laboratory to test gravity and dark matter (DM). We demonstrate that DM interactions in stellar interiors induce a novel momentum transfer force, altering orbits beyond gravitational effects. Using S2's 2000-2019 orbital data we derive the first astrophysical constraints on DM-nucleon scattering, excluding new sub-GeV parameter space. Stellar lifetime constraints over Myr timescales complement these, surpassing some direct detection and cosmological limits. This establishes stellar dynamics as a novel probe of DM interactions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_07387 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Probing Dark Matter Interactions with Stellar Motion near Sagittarius A* Gustafson, R. Andrew Shoemaker, Ian M. Takhistov, Volodymyr High Energy Physics - Phenomenology Astrophysics of Galaxies High Energy Physics - Experiment Stars orbiting Sgr A* at the Milky Way's center provide a unique laboratory to test gravity and dark matter (DM). We demonstrate that DM interactions in stellar interiors induce a novel momentum transfer force, altering orbits beyond gravitational effects. Using S2's 2000-2019 orbital data we derive the first astrophysical constraints on DM-nucleon scattering, excluding new sub-GeV parameter space. Stellar lifetime constraints over Myr timescales complement these, surpassing some direct detection and cosmological limits. This establishes stellar dynamics as a novel probe of DM interactions. |
| title | Probing Dark Matter Interactions with Stellar Motion near Sagittarius A* |
| topic | High Energy Physics - Phenomenology Astrophysics of Galaxies High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2510.07387 |