Data: 11.08.2016

Palestrante: Dr. Eric Baxter (UPenn)

Vídeo: https://youtu.be/l_s4pzrR7gc

ABSTRACT: Clusters of galaxies are the most massive gravitationally bound structures in the Universe. The abundance of these rare objects is very sensitive to cosmological parameters such as the equation of state of dark energy. However, exploiting the full power of galaxy clusters as cosmological probes requires accurate constraints on their masses. In this talk, I will describe two relatively new but potentially powerful approaches to constraining the masses of galaxy clusters: gravitational lensing of the Comic Microwave Background and cluster clustering.