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Distribution de masse d'un echantillon d'amas de galaxies determinee par effet de lentille gravitationnelle faible

Abstract : One of the strongest predictions of Einstein's General Relativity is the ability of any mass to curve space-time and consequently to deflect light rays. One of its direct consequence is then the gravitational lensing effect: images of sources located in the background of a massive object lying on the line-of-sight are distorted, magnified or even splitted in multiple images. Galaxy clusters, the most massive structures in the Universe, are able to generate the strongest effect. The history, the formation process and the dynamical state of these entities are clues to understand the formation and the evolution of the Universe itself. This thesis aims at understanding and constraining the mass distribution of a sample of galaxy clusters measured from weak gravitational lensing, thanks to a statiscal study of weakly distorted objects.
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https://tel.archives-ouvertes.fr/tel-00008027
Contributor : Sebastien Bardeau <>
Submitted on : Wednesday, January 12, 2005 - 5:45:13 PM
Last modification on : Thursday, October 15, 2020 - 4:07:06 AM
Long-term archiving on: : Friday, April 2, 2010 - 9:38:10 PM

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  • HAL Id : tel-00008027, version 1

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Sebastien Bardeau. Distribution de masse d'un echantillon d'amas de galaxies determinee par effet de lentille gravitationnelle faible. Astrophysique [astro-ph]. Université Paul Sabatier - Toulouse III, 2004. Français. ⟨tel-00008027⟩

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