Observational evidence of the accelerated expansion of the universe

Pierre Astier; Reynald Pain

HAL: in2p3-00748922, version 1

arXiv: 1204.5493

ADS Bibliographic id: 2012CRPhy..13..521A

DOI: 10.1016/J.CRHY.2012.04.009

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Comptes Rendus Physique 13 (2012) 521-538

Observational evidence of the accelerated expansion of the universe

Pierre Astier¹, Reynald Pain¹

(2012-07)

The discovery of cosmic acceleration is one of the most important developments in modern cosmology. The observation, thirteen years ago, that type Ia supernovae appear dimmer that they would have been in a decelerating universe followed by a series of independent observations involving galaxies and cluster of galaxies as well as the cosmic microwave background, all point in the same direction: we seem to be living in a flat universe whose expansion is currently undergoing an acceleration phase. In this article, we review the various observational evidences, most of them gathered in the last decade, and the improvements expected from projects currently collecting data or in preparation.

1:	LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies

Subject(s)

Physics/Astrophysics/Cosmology and Extra-Galactic Astrophysics

Sciences of the Universe/Astrophysics/Cosmology and Extra-Galactic Astrophysics

Keyword(s) : Modern cosmology – Type Ia supernovae – Baryon acoustic oscillations – Weak lensing – Clusters – Dark energy – Cosmologie moderne – Supernovae de type Ia – Oscillations baryoniques – Lentilles gravitationnelles – Amas de galaxies – Energie noire

Fulltext link:

http://fr.arXiv.org/abs/1204.5493


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From: Pierre Astier <>
Submitted on: Tuesday, 6 November 2012 12:04:56
Updated on: Tuesday, 6 November 2012 17:13:22