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The Universe composition in the standard model for cosmology. The CMB data from WMAP were crucial to establish this model.
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This is the summary of two lectures that aim to give an overview of
cosmology. I will not try to be too rigorous in derivations, nor to give a full
historical overview. The idea is to provide a "taste" of cosmology and some of
the interesting topics it covers. The standard cosmological model is presented
and I highlight the successes of cosmology o...
Contexts in source publication
Context 1
... WMAP produced the highest-resolution full-sky map of the CMB anisotropies to date. A detailed analysis of the shape of the angular temperature power spectrum from the WMAP data constrains the parameters of the LCDM model at the per cent level (see [11][12][13] and references therein). For example, the composition of the Universe is summarized in Fig. 3. Before concluding this section, we should mention that the Planck satellite has been measuring the CMB sky with even better precision than WMAP and should release its results in a year or so. There is more information in the CMB radiation than the temperature fluctuations: the CMB light is also polarized. This will be discussed in ...
Context 2
... we go back to look at Fig. 3 we quickly realize that in the standard cosmological model 96% of the Universe is missing, i.e. it is supposed to be in the form of dark matter or dark energy, about which we know very little. While the dark matter at least is a form of matter and may soon be detected directly by one of the underground ongoing experiments, there are ...
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