PIRSA:15080009 Conference Cosmology Other

DOI10.48660/15080009

Conference/School: Cosmic Flows (and other novelties on Large Scales)

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}}
}

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.

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