Cosmological Applications of Gravitational Lensing

Details Cosmological Applications of Gravitational Lensing Cosmological Applications of Gravitational Lensing

1999-01-11

arxiv.org/abs/astro-ph/9901116v1

Astronomy and Astrophysics

Astrophysics

To appear in the Cargese Summer School on Theoretical and Observational Cosmology. Cargese, August 1998. Latex and psfig.sty.

Scientific paper

This course presents some applications of gravitational lensing to the measurement of masses of galaxies (galaxy-galaxy lensing, Eintein rings, perturbations of giant arcs) and cluster of galaxies (strong and weak lensing). This complements the F. Bernardeau's course dedicated to some theoretical aspects and weak lensing by large scale structures. In the first section, I describe the most important lensing quantities and lensing properties useful for astrophycal applications. Then I briefly present some academic exemples. Section three is devoted to exemples of mass reconstruction and the study of mass distribution in clusters of galaxies and galaxies.

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