AST-564intermediate

Dark Matter Halos & Gravitational Lensing: Observation, Measurement & Evidence

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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intermediate48 minFact checked

Dark Matter Halos & Gravitational Lensing: Observation, Measurement & Evidence

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AST-563Dark Matter Halos & Gravitational Lensing: Physical Mechanisms→

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AST-565Dark Matter Halos & Gravitational Lensing: Advanced Connections→

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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.