Title：Metal transport in the interstellar and circumgalactic medium

Speaker：Dr. Mark Krumholz (Australian National University )

Special Time：3:00 pm Apr. 7th (Tuesday)

Tencent Meeting：183645079

Location: Lecture Hall, 3rd floor

Abstract：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.

CV：Mark Krumholz completed his PhD at University of California, Berkeley in 2005, and then held a Hubble Fellowship at Princeton from 2005-2008. He joined the faculty at the University of California, Santa Cruz in 2008, serving as assistant and then associate professor, before moving The Australian National University as a professor in 2015, where he has remained since. He is an Australian Research Council Laureate Fellow and a fellow of the Australian Academy of Sciences. His research interests are in theory of star formation and the interstellar medium, and numerical methods for large-scale simulations.