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Weak and Strong Lensing Statistics

Norbert Straumann

astro-pharXiv:astro-ph/0108255

Abstract

After a brief introduction to gravitational lensing theory, a rough overview of the types of gravitational lensing statistics that have been performed so far will be given. I shall then concentrate on recent results of galaxy-galaxy lensing, which indicate that galactic halos extend much further than can be probed via rotation of stars and gas.

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