What's stirring up disk galaxies?

Dr. John Forbes (Flatiron Institute)
Tuesday, February 25, 2020 - 11:00am

Galaxy formation is a field currently overwhelmed by data, from large surveys to cosmological simulations. As the simulations continue to improve their matches to the observations, some have been left wondering whether the basic picture of galaxy evolution is settled. I will argue that this is far from the case, and that a new generation of semi-analytic models and statistical techniques are needed to simultaneously address the strong degeneracies that persist in the problem of galaxy evolution and to coherently comprehend the vast quantities of extant and forthcoming data. I will focus on the problems of what drives turbulence in galactic disks, and different formulations of the baryon cycle.

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