PHYSICS 7E Lecture Notes - Lecture 21: Dwarf Galaxy, Structure Formation, Gravitational Lens

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29 May 2018

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PHYSICS 20B - Lecture 21 - Dark Matter (Part 2)

*Images from Professor Cooper’s Lecture

Dark Matter

The Geometry of Strong Lensing

●Light from a background source is bent by gravity of foreground object (the “lens”)

Weak Gravitational Lensing

●But galaxies have intrinsic elongation, which

acts as noise on top of the weak lensing signal

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