E-Dissertationen: Search
Now showing items 1-3 of 3
Theoretical Aspects of Cosmic Shear and its Ability to constrain Cosmological Parameters
(2009-03-13)
In the last decade weak gravitational lensing by the large-scale structure of the Universe, also called cosmic shear, has become an important tool to constrain cosmological parameters. Despite this success there remain ...
Studying Galaxy-Galaxy Lensing and Higher-Order Galaxy-Mass Correlations Using the Halo Model
(2009-06-22)
In recent years, the distribution of galaxies in the Universe could be measured up to large distances and over a significant part of the sky. The analysis of this large-scale structure contains a wealth of cosmological ...
Ray-Tracing Simulations of Weak Gravitational Lensing
(2009-07-02)
Weak gravitational lensing, i.e. the distortion of images of distant galaxies due to the deflection of light rays in gravitational fields, is a powerful method to study the matter distribution in the Universe. It can be ...