会议论文详细信息
6th Nuclear Physics in Astrophysics | |
Constraints on asymmetric dark matter from asteroseismology | |
物理学;天文学 | |
Casanellas, J.^1 ; Lopes, I.^2 | |
Max Planck Institute for Gravitational Physics, Albert Einstein Institute, Germany^1 | |
CENTRA, Instituto Superior Técnico, Universidade de Lisboa, Portugal^2 | |
关键词: Asteroseismology; Dark matter; Low-mass stars; Proton scattering; | |
Others : https://iopscience.iop.org/article/10.1088/1742-6596/665/1/012016/pdf DOI : 10.1088/1742-6596/665/1/012016 |
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学科分类:天文学(综合) | |
来源: IOP | |
【 摘 要 】
We report recent results on the impact of asymmetric dark matter (DM) particles on low-mass stars. First, we found that the small convective core expected in stars with masses between 1.1 and 1.3 Mois suppressed due to DM cooling. Moreover, stars with masses below 1 Mohave their central temperatures and densities more strongly influenced by DM than in the solar case. We were able to put limits to the DM mass and spin-dependent DM-proton scattering cross section by comparing the modelling of the nearby star α Cen B with photometric, spectroscopic and asteroseismic observations.
【 预 览 】
Files | Size | Format | View |
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Constraints on asymmetric dark matter from asteroseismology | 775KB | download |