AST-563intermediate

Dark Matter Halos & Gravitational Lensing: Physical Mechanisms

Dark-matter halos dominate the mass budgets of many galaxies and galaxy clusters. Lensing constrains halo profiles, cluster masses, cosmological structure growth, substructure, and the distribution of dark matter during galaxy collisions.

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Dark Matter Halos & Gravitational Lensing: Physical Mechanisms

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AST-562Dark Matter Halos & Gravitational Lensing: Structures & Vocabulary→

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AST-564Dark Matter Halos & Gravitational Lensing: Observation, Measurement & Evidence→

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Dark-matter halos dominate the mass budgets of many galaxies and galaxy clusters.

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Mass curves spacetime and alters light paths.

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Galaxy rotation, cluster dynamics, strong-lensing arcs, weak-lensing shear, and collision systems all require more mass than observed baryons provide.