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Self-interacting dark matter on small and large scales
by Camila A. Correa
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Submission summary
| Authors (as registered SciPost users): | Camila Correa |
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| Preprint Link: | scipost_202208_00056v2 (pdf) |
| Date accepted: | 2023-04-28 |
| Date submitted: | 2022-12-05 10:40 |
| Submitted by: | Correa, Camila |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | 14th International Conference on Identification of Dark Matter (IDM2022) |
| Ontological classification | |
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| Academic field: | Physics |
| Specialties: |
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| Approach: | Theoretical |
Abstract
In the self-interacting dark matter paradigm (hereafter SIDM), dark matter (DM) is assumed to have non-gravitational interactions with itself. SIDM has been constrained by observations of galaxy clusters. More recently, measurements of large DM densities at the center of the Milky Way's galaxy satellites are indicating that DM-DM interactions can potentially induce gravothermal core collapse. In this proceeding an overview of the combined measurements of cluster-size galaxies and kinematics of local satellite galaxies is used to argue that DM interactions should depend on the relative velocity of the DM particles.
Published as SciPost Phys. Proc. 12, 059 (2023)