PIRSA:11030069

Signatures of Cosmic Structure Formation in the Microwave Background

Holder, G. (2011). Signatures of Cosmic Structure Formation in the Microwave Background. Perimeter Institute. https://pirsa.org/11030069

Holder, Gilbert. Signatures of Cosmic Structure Formation in the Microwave Background. Perimeter Institute, Mar. 25, 2011, https://pirsa.org/11030069 

          @misc{ pirsa_PIRSA:11030069,
            doi = {10.48660/11030069},
            url = {https://pirsa.org/11030069},
            author = {Holder, Gilbert},
            keywords = {Particle Physics},
            language = {en},
            title = {Signatures of Cosmic Structure Formation in the Microwave Background},
            publisher = {Perimeter Institute},
            year = {2011},
            month = {mar},
            note = {PIRSA:11030069 see, \url{https://pirsa.org}}
          }

Gilbert Holder University of Illinois Urbana-Champaign

DOI 10.48660/11030069
Collection
Talk Type Scientific Series
Subject

Abstract

On small scales the cosmic microwave background (CMB) is perturbed by large scale structure in the universe, primarily through Compton scattering and gravitational lensing. The current generation of CMB experiments is measuring these signals, allowing new measurements of the build-up of cosmic structure. I will discuss two such measurements being made with the South Pole Telescope: 1) through Compton scattering (the Sunyaev-Zeldovich effect) we have compiled a large catalog of very massive galaxy clusters extending to z>1, allowing a measure of the growth of structure from z=1 to today; 2) we are currently measuring the gravitational lensing of the CMB, providing an accurate measure of the integrated structure between z=0 and z=1100. Both of these are powerful new tests of our cosmological understanding.