Dark matter in massive galaxies
Ortwin Gerhard (MPE Garching)
TL;DR
This paper reviews how the distribution of dark and luminous matter in massive early-type galaxies reveals their formation history, combining simulation predictions with observational data from lensing, X-ray, and stellar dynamics.
Contribution
It synthesizes cosmological simulation predictions with observational constraints to better understand dark matter in massive early-type galaxies.
Findings
Dark matter distribution correlates with galaxy formation processes
Observational methods provide complementary insights into dark matter halos
Simulations and observations together refine models of galaxy evolution
Abstract
The spatial distributions of luminous and dark matter in massive early-type galaxies reflect the formation processes which shaped these systems. This article reviews the predictions of cosmological simulations for the dark and baryonic components of ETGs, and the observational constraints from lensing, hydrostatic X-ray gas athmospheres, and outer halo stellar dynamics.
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