PIRSA:22090095

Cosmic shadows and cosmic structures: the CMB as a Large-Scale Structure experiment

APA

Ferraro, S. (2022). Cosmic shadows and cosmic structures: the CMB as a Large-Scale Structure experiment. Perimeter Institute. https://pirsa.org/22090095

MLA

Ferraro, Simone. Cosmic shadows and cosmic structures: the CMB as a Large-Scale Structure experiment. Perimeter Institute, Sep. 27, 2022, https://pirsa.org/22090095

BibTex

          @misc{ pirsa_22090095,
            doi = {10.48660/22090095},
            url = {https://pirsa.org/22090095},
            author = {Ferraro, Simone},
            keywords = {Cosmology},
            language = {en},
            title = {Cosmic shadows and cosmic structures: the CMB as a Large-Scale Structure experiment},
            publisher = {Perimeter Institute},
            year = {2022},
            month = {sep},
            note = {PIRSA:22090095 see, \url{https://pirsa.org}}
          }
          

Simone Ferraro University of California

Abstract

Information about the late-time Universe is imprinted on the small scale CMB as photons travel to us from the surface of last scattering. Several processes are at play and small scale fluctuations are very rich and non-Gaussian in nature. I will review some of the most important effects and I will focus on the Sunyaev-Zel'dovich (SZ) effect and gravitational lensing. I will discuss how a combination of measurements can probe velocity fields at cosmological distances and inform us on cluster energetics. I will also show recent measurements of weak lensing of the CMB and how they can help us interpret intriguing discrepancies in cosmological parameters between the high and low redshift Universe.

Zoom link: https://pitp.zoom.us/j/94451033605?pwd=Tkx4dHZTblMxUFJlZENyblJQVFo2dz09