Matthew C. Johnson
Department of Physics and Astronomy, York University
Perimeter Institute for Theoretical Physics
Cosmology with the Secondary CMB
Abstract: Future CMB experiments will probe the high-resolution, low-noise frontier where secondary CMB anisotropies dominate the blackbody component of the observed temperature anisotropies. Secondary anisotropies arise due to the electromagnetic or gravitational scattering of CMB photons from structure, and encode a significant amount of astrophysical and cosmological information.
In this talk, I will illustrate how cosmological information is encoded in several CMB secondaries: the kinetic Sunyaev Zel’dovich effect, the moving lens effect, and the polarized Sunyaev Zel’dovich effect. I will outline how this information can be used to test early-Universe physics and the nature of gravity, and forecast constraints for upcoming surveys.
یکشنبه 1 اسفند 1400، ساعت 19:00
Sunday 20 February 2022 – 19:00 Tehran Time
اتاق سمینار مجازی –Virtual Seminar Room
https://vc.sharif.edu/ch/cosmology
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