Lecture

Evidence for Dark Matter: Galactic Rotation Curves and Clusters

Description

This lecture discusses the evidence for dark matter in the universe, focusing on galactic rotation curves and clusters. It covers observations of galaxies without dark matter, weak lensing in clusters, and the Bullet Cluster as strong evidence for dark matter. The lecture also delves into cosmology, exploring the Robertson-Walker metric, comoving coordinates, and the expansion of the universe. Topics include critical density, radiation density, matter density, vacuum energy, and the history of the universe, including inflation. The lecture concludes with discussions on cosmological neutrinos, CP violation, and the abundance of elements.

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