Research report 2020 - Max Planck Institute for Astrophysics
Our Milky Way – not a typical spiral galaxy
Max Planck Institute for Astrophysics, Garching
SummaryBy examining the Auriga suite of simulations, which model the formation of galaxies from soon after the Big Bang to the present day, scientists at MPA have been able to place constraints on the history of our galaxy. By comparing these simulations to observations of the Milky Way – specifically to the motions of stars in its inner regions — they concluded that our galaxy has been quite isolated in the last 12 billion years, only swallowing small galaxies with less than 5 % of its mass since then.