Constraints on asymmetric dark matter from asteroseismology

Дата и время публикации : 2013-07-24T18:29:17Z

Авторы публикации и институты :
Jordi Casanellas
Ilídio Lopes

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к cтатье: 4 pages, 1 figure. Proceedings of the NPA-VI Conference, Lisbon 2013
Первичная категория: astro-ph.SR

Все категории : astro-ph.SR, hep-ph

Краткий обзор статьи: 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 Msun is suppressed due to DM cooling. Moreover, stars with masses below 1 Msun have 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 Alpha Cen B with photometric, spectroscopic and asteroseismic observations.

Category: Physics