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Reconstruction of the dark matter distribution in the Milky Way

Presentation #401.06 in the session “How Gaia Reveals the Galaxy’s Secrets: Results on the Galactic Scale, Part 1”.

Published onJun 01, 2021
Reconstruction of the dark matter distribution in the Milky Way

Orbits of individual stars in the Milky Way trace the underlying gravitational potential, and as such, they provide a unique insight into the distribution of matter in our galaxy. Large astronomical projects like Gaia, SDSS and DESI are now measuring precise motions of stars deep into the dark matter-dominated outer regions of our galaxy. I will discuss how these measurements allow us to precisely reconstruct the 3D distribution of dark matter throughout the galaxy, and for the first time, open the possibility of identifying individual dark-matter substructures.


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