Grad Talk: Dark Matter and Neutron Stars: A Match Made in Heaven

Pedro Espino, University of Arizona
Friday, October 13, 2017 - 2:15pm
PAS 218

Neutron Stars offer an ideal laboratory in which to examine the properties of Particle Dark Matter. As Dark Matter accretes onto a compact star over its lifetime, interactions with the stellar matter and with itself will induce changes in the Equation of State describing cold nuclear matter. These interactions may induce an observable effect on the bulk properties of the star. I will present a method of indirect Dark Matter detection which uses bounds on the masses and radii of old Neutron Stars to place constraints on the properties of Particle Dark Matter, such as the interaction cross-section with nucleons and the mass. Using Neutron Stars as tools for the indirect detection of Dark Matter allows for the analysis of parameter space which is not yet accessible to direct detection experiments or collider searches. Results will be presented for two viable models of Particle Dark Matter.