PIRSA:12070004 Cosmology

Outreach: ISSYP 2012

Burgess, C. (2012). What is the Universe Made Of? The Case for Dark Matter and Dark Energy. Perimeter Institute. https://pirsa.org/12070004

Burgess, Cliff. What is the Universe Made Of? The Case for Dark Matter and Dark Energy. Perimeter Institute, Jul. 13, 2012, https://pirsa.org/12070004 

@misc{ pirsa_PIRSA:12070004,
  doi = {},
  url = {https://pirsa.org/12070004},
  author = {Burgess, Cliff},
  keywords = {Cosmology},
  language = {en},
  title = {What is the Universe Made Of? The Case for Dark Matter and Dark Energy},
  publisher = {Perimeter Institute},
  year = {2012},
  month = {jul},
  note = {PIRSA:12070004 see, \url{https://pirsa.org}}
}

Abstract

For the first time in human thought it is now
possible to observationally determine how much matter is in the Universe as a
whole. These observations strongly support the “Concordance Model” of Hot Big
Bang Cosmology, and reinforce earlier indications that ordinary matter (atoms,
nuclei and electrons) make up at present at most 4% of the total of the
Universal energy density. The big surprise was that the rest consists of *two*
kinds of unknown forms of matter: the so-called Dark Matter and Dark Energy.
This talk summarizes for non-specialists the various lines of evidence for
their existence, and some of the theoretical ideas which have been proposed to
account for their properties

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