PIRSA:25070025 Conference Cosmology

DOI10.48660/25070025

Conference/School: Cosmic Ecosystems

Coulton, W. (2025). New views of cosmic gas from Atacama Cosmology Telescope observations of the millimeter sky. Perimeter Institute. https://pirsa.org/25070025

Coulton, William. New views of cosmic gas from Atacama Cosmology Telescope observations of the millimeter sky. Perimeter Institute, Jul. 29, 2025, https://pirsa.org/25070025 

@misc{ pirsa_PIRSA:25070025,
  doi = {10.48660/25070025},
  url = {https://pirsa.org/25070025},
  author = {Coulton, William},
  keywords = {Cosmology},
  language = {en},
  title = {New views of cosmic gas from Atacama Cosmology Telescope observations of the millimeter sky},
  publisher = {Perimeter Institute},
  year = {2025},
  month = {jul},
  note = {PIRSA:25070025 see, \url{https://pirsa.org}}
}

Abstract

As cosmic microwave background photons travel through the Universe a small fraction of them interact with the intervening cosmic gas and thereby imprint the properties of this gas on our CMB observations. In this talk I will describe how data from the Atacama Cosmology Telescope can be used to isolate the signals arising from hot gas throughout the Universe and how the data can be used to measure both the integrated electron pressure and temperature of galaxy clusters. I will discuss how upcoming CMB experiments, such as the Simons Observatory, will allow us to improve our characterisation of the properties and evolution of cosmic gas.

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