Speaker
Prof.
Ruth Durrer
(Universite de Geneve)
Description
Most numbers in cosmology have been measured using the anisotropies and polarisation of the Cosmic Microwave Background (CMB). So far other data has mainly been used for consistency checks and very few inconsistent measurements exist.
The reason for this is twofold: first the theory of the CMB is nearly linear and therefore quite simple. Secondly, the CMB spectrum peaks around frequencies which allow relatively precise observations from the ground and especially from space.
In the first part of my talk I review the relatively simple physics behind CMB anisotropies and polarisation and show in some examples how it can be used to measure cosmological parameters.
In a second part I outline ideas to go beyond present measurements which mainly constrain cosmological parameters and show how we can use the CMB to test General Relativity on cosmological scales. If there is time, I would also like to outline interesting new developments in the theory of Large Scale Structure observations and argue why we hope that future LSS surveys can compete with and complement CMB observations.
| Overview or Regular Talk? | Overview: 75 min. |
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Primary author
Prof.
Ruth Durrer
(Universite de Geneve)
