New PDF release: Gravitational Lensing

By Scott Dodelson

Gravitational lensing is a end result of common relativity, the place the gravitational strength because of a major item bends the trails of sunshine originating from far away gadgets mendacity in the back of it. utilizing little or no normal relativity and no better point arithmetic, this article offers the fundamentals of gravitational lensing, targeting the equations had to comprehend the phenomena. It then applies them to a various set of themes, together with multiply imaged gadgets, time delays, extrasolar planets, microlensing, cluster lots, galaxy form measurements, cosmic shear, and lensing of the cosmic microwave historical past. This technique permits undergraduate scholars and others to get fast up to the mark at the fundamentals and the real concerns. The textual content can be in particular suitable as huge surveys similar to LSST and Euclid start to dominate the astronomical panorama. Designed for a one semester path, it's obtainable to somebody with years of undergraduate physics background.

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Gravitational Lensing by Scott Dodelson

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