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Observations over the past decade have revealed that galaxies lose many of the metals they produce to the circumgalactic medium, and that the metals they retain are arranged in complex patterns that go beyond simple radial gradients. Theoretical models for how metals move through and out of the interstellar medium to produce these distributions are still in their infancy. In this talk, I discuss current theoretical and numerical efforts to understand the processes that drive elemental distributions, which combine turbulent transport of metals within disks and loss of imperfectly-mixed metals from the disk into galactic winds. I highlight the major implications of this emerging picture for areas ranging from galaxy formation to stellar populations within the Milky Way.

BIO

Mark Krumholz’s work focuses on the formation of stars and galaxies, interstellar flows of gas and cosmic rays, and numerical methods for simulating these processes. He currently serves as a professor and Australian Research Council Laureate Fellow at the Research School of Astronomy and Astrophysics at the Australian National University. Prior to moving to ANU, he was a tenured faculty member in the Department of Astronomy and Astrophysics at the University of California, Santa Cruz, and a Hubble postdoctoral fellow at Princeton University. He received his PhD in 2005 from the University of California, Berkeley.

Host: Hui Li