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March 3, 20224:00 pm – 5:00 pm (CDT)

Lessons on Galaxy Transformations from Gaia


Vasily Belokurov (Cambridge University)


Louis Strigari



Mitchell Institute for Fundamental Physics & Astronomy

College Station, Texas 77843

Event Details

With its most recent data releases, European Space Agency’s Gaia mission revealed the fossilised record of a dramatic - and long suspected - accretion event in the distant past of our Galaxy. This head-on collision with a massive dwarf galaxy was a turning point in the evolution of the Milky Way and unleashed a series of transformations that forever changed the Galaxy. This unprecedented metamorphosis is the focus of this talk. I will discuss the time, the geometry and the kinematics of the interaction, and elucidate the response of the Milky Way to the massive intruder.

Video Recording

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