PIRSA:15080009

Probing cosmic flows through the kinematic Sunyaev Zel'dovich effect

Schaan, E. (2015). Probing cosmic flows through the kinematic Sunyaev Zel'dovich effect. Perimeter Institute. https://pirsa.org/15080009

Schaan, Emmanuel. Probing cosmic flows through the kinematic Sunyaev Zel'dovich effect. Perimeter Institute, Aug. 10, 2015, https://pirsa.org/15080009 

          @misc{ pirsa_PIRSA:15080009,
            doi = {10.48660/15080009},
            url = {https://pirsa.org/15080009},
            author = {Schaan, Emmanuel},
            keywords = {Cosmology, Other},
            language = {en},
            title = {Probing cosmic flows through the kinematic Sunyaev Zel{\textquoteright}dovich effect},
            publisher = {Perimeter Institute},
            year = {2015},
            month = {aug},
            note = {PIRSA:15080009 see, \url{https://pirsa.org}}
          }

Emmanuel Schann

Princeton University

Talk number
PIRSA:15080009
Collection
Talk Type
Subject
Abstract
Beyond its primary fluctuations, the cosmic microwave background (CMB) contains a wealth of information on the large-scale structure of the universe, which it illuminates as a backlight. The baryon momentum field is thus imprinted on the CMB through the kinematic Sunyaev-Zel'dovich (kSZ) effect. Current small-scale high-sensitivity CMB experiments make this effect detectable, providing a unique handle on peculiar velocities and baryon physics. I will report a significant detection of the kSZ effect, obtained by combining CMB intensity data with peculiar velocities reconstructed from the galaxy number density field. I will present the prospects for localizing the missing baryons, constraining baryon physics inside galaxy clusters, and measuring the growth rate of structure from the kSZ effect. I will finally explore the possibility of measuring velocities across the line of sight through the CMB moving lens effect.