Probing Dark Energy with Galaxy Clusters

Galaxy cluster surveys have been recognized as one of the most powerful probes of dark energy, but their constraining power is limited by the accuracy of mass calibration.  I will present my research on using simulations to improve mass calibration methods, including galaxy dynamics, weak gravitational lensing, clustering, and X-ray observations.  These results not only mitigate the systematic uncertainties in current cluster surveys but also help the optimization for future ground- and space-based missions.

Speaker: Hao-Yi Wu, Ohio State Univ.