Speaker
Sebastian Bocquet
(LMU Munich)
Description
The sample of galaxy clusters selected by the South Pole Telescope (SPT, combining the SPT-SZ and SPTpol surveys) now exceeds a thousand objects. The weak-lensing based mass calibration using Dark Energy Survey (DES) Y3 data will be better than 5%. The joint analysis of the cluster abundance and weak-lensing mass calibration is therefore expected to provide significantly tighter cosmological constraints than the current state of the art. In my talk, I will review the SPT cluster cosmology and mass calibration program. I will focus on the almost completed weak-lensing analysis using DES Y3 data and highlight the current status of the ongoing cosmological analysis.
Primary author
Sebastian Bocquet
(LMU Munich)
Co-authors
DES Collaboration
SPT Collaboration
