1612.06535
Weak gravitational lensing
Bartelmann, Maturi
According to the theory of GR, masses deflect light in a way similar to convex glass lenses. This gravitational lensing effect is astigmatic, giving rise to image distortions. These distortions allow to quantify cosmic structures statistically on a broad range of scales, and to map the spatial distribution of dark and visible matter. Summarise the theory of WL and review applications to galaxies, galaxy clusters and large-scale structures in the Universe.
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