Studying Dark Matter and Particle Acceleration in Galaxy Cluster
by
M. Brüggen(Hamburg)
→
Europe/Stockholm
FA 32
FA 32
Description
Galaxy clusters are important probes for cosmology. They are used to infer cosmological parameters such as the baryon fraction or \sigma_8. Recent multi-wavelength observations have opened up new possibilities to study fundamental physics. By measuring the offsets between gas, dark matter and galaxies, one can constrain the self-interaction cross-section of dark matter. Moreover, galaxy clusters are sites of particle acceleration. However, the conditions under which particles are accelerated are different from those in other cosmic particle accelerators, and they challenge our theories of particle acceleration. I will review the latest observations and simulations, and present a campaign that will focus on these questions.