Geometrical constraints on dark energy models

Details Geometrical constraints on dark energy models Geometrical constraints on dark energy models

2007-10-15

arxiv.org/abs/0710.2872v1

AIPConf.Proc.960:3-32,2007

Astronomy and Astrophysics

Astrophysics

28 pages, 15 pages, lecture notes prepared for the ``Advanced Summer School in Physics 2007" organized by Cinvestav (Mexico DF

Scientific paper

10.1063/1.2825127

This contribution intends to give a pedagogical introduction to the topic of dark energy (the mysterious agent supposed to drive the observed late time acceleration of the Universe) and to various observational tests which require only assumptions on the geometry of the Universe. Those tests are the supernovae luminosity, the CMB shift, the direct Hubble data, and the baryon acoustic oscillations test. An historical overview of Cosmology is followed by some generalities on FRW spacetimes (the best large-scale description of the Universe), and then the test themselves are discussed. A convenient section on statistical inference is included as well.

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