Campus, Varian 312
Dark matter can lose energy and become trapped in celestial objects through repeated scatterings against their constituents. If dark matter is asymmetric in nature, there is no sizeable annihilation and therefore large amounts can be accumulated in the interior of stars and planets. Under these conditions, the captured dark matter at the centre grows in mass, eventually becoming unstable and collapsing. This process can lead to a small black hole which, depending on its initial mass, can either evaporate to high energy particles or grow by accretion destroying the host. In this seminar, I will discuss various potential signatures of this phenomenon, which range from high-energy neutrinos to supernovae, as well as how they place constraints on dark matter masses and cross-sections that are inaccessible to direct detection experiments.