PIRSA:15080003 Conference Cosmology Other

DOI10.48660/15080003

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

Ali-Haimoud, Y. (2015). 21cm fluctuations in the dark ages and cosmic heat flows. Perimeter Institute. https://pirsa.org/15080003

Ali-Haimoud, Yacine. 21cm fluctuations in the dark ages and cosmic heat flows. Perimeter Institute, Aug. 12, 2015, https://pirsa.org/15080003 

@misc{ pirsa_PIRSA:15080003,
  doi = {10.48660/15080003},
  url = {https://pirsa.org/15080003},
  author = {Ali-Haimoud, Yacine},
  keywords = {Cosmology, Other},
  language = {en},
  title = {21cm fluctuations in the dark ages and cosmic heat flows},
  publisher = {Perimeter Institute},
  year = {2015},
  month = {aug},
  note = {PIRSA:15080003 see, \url{https://pirsa.org}}
}

Abstract

The spin-flip transition in neutral hydrogen may be used to probe large-scale structure at high redshifts, before the first luminous objects formed. The huge number of modes potentially accessible make this a very promising avenue. I will discuss several key unknowns that could be measured with high-redshift 21cm surveys: primordial non-gaussianity, the primordial small-scale power spectrum, and dark-matter-baryon interactions. I will close by discussing CMB spectral distortions, another promising probe of early Universe physics, and illustrate how they can be used to test dark-matter interactions with standard model particles.

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