Astroparticlephysics with Dwarf Galaxies
Matthew Walker



Thus far all dark matter phenomenology is limited to gravitational interactions. Confirmation of the existence of a dark matter particle requires detection of its nongravitational interactions. Large densities and low backgrounds make dwarf galaxies attractive targets in the ongoing search for high-energy photons that may be emitted if the dark matter consists of particles that self-annihilate and/or decay. I will describe how my stellar-kinematic observations--when combined with non-detections of gamma rays--translate into upper limits on annihilation cross sections. I will briefly discuss implications for the particle physics of dark matter.