Asymmetric dark matter forms a well motivated class of dark matter models with unique detection characteristics. In particular, if asymmetric dark matter has a non-negligible nuclear scattering cross-section, it will accumulate efficiently in neutron star cores, potentially causing neutron star collapse. Due to the extremely high mass and detailed modeling of neutron star populations, observations can probe parameter spaces far below current direct detection bounds. In this talk, I will discuss the current state of astrophysical constraints on this model space, as well as three intriguing anomalies (the missing pulsar problem, Fast radio bursts, and r-process production in Ultra-faint dwarf galaxies) that may potentially be explained by dark matter accumulation in neutron star interiors.

This talk will cover material from two recent papers with Joseph Bramante (1405.1031, 1601.06784), as well as several new calculations of asymmetric dark matter interactions with neutron stars.