Yale Astronomy & Astrophysics Colloquium - Mariangela Lisanti

Event time: 
Thursday, November 14, 2019 - 2:30pm
Mariangela Lisanti
Speaker Institution: 
Princeton University
Talk Title: 
Mapping the Milky Way's Dark Matter Halo with Gaia
Event description: 

The Gaia mission is in the process of mapping nearly 1% of the Milky Way’s stars. This data set is unprecedented and provides a unique view into the formation history of our Galaxy and its associated dark matter halo.  I will review results based on the most recent Gaia data release, demonstrating how the evolution of the Galaxy can be deciphered from the stellar remnants of massive satellite galaxies that merged with the Milky Way early on.  The recent advancements in our understanding of the Galaxy’s evolution suggest that a component of the local dark matter is not in equilibrium, as typically assumed, and instead exhibits distinctive dynamics. The updated dark matter map built from the Gaia data has ramifications for direct detection experiments, which search for the interactions of these particles in terrestrial targets.

Watson Center A-51 See map
60 Sachem Street
New Haven, CT 06511
Open to: 
General Public