Detectability of dark matter subhalos in Milky Way stellar streams

Abstract: Stellar streams are a promising way to probe the gravitational effects of low-mass dark matter (DM) subhalos. In recent years, there has been a remarkable explosion in the number of stellar streams detected in the Milky Way. Studies of DM subhalo impacts on streams have so far focused on a few of the thinnest and brightest streams, and it is not known how much information can be gained from the many known streams. I will discuss our work to assess (i) the minimum subhalo mass detectable in a stream and (ii) the number of impacts detected across MW streams. Applying our results to confirmed Milky Way streams, we rank order them by their sensitivity to DM subhalos.