University of Connecticut

Events Calendar

Astronomy Seminar

Wednesday, January 24, 2018
2:00pm – 3:00pm

Storrs Campus

Dr. Paul Torrey, NASA Hubble Postdoctoral Fellow, Massachusetts Institute of Technology

Probing Galaxy Formation with Modern Cosmological Simulations

Cosmological simulations are among the most powerful tools available to probe the non-linear regime of cosmic structure formation. They also provide a clear test-bed for understanding the impact that hydrodynamics and feedback processes have on the evolution of galaxies. I will present results from the recent Illustris and IllustrisTNG simulations with a focus on the evolution of cosmic metals. Illustris and IllustrisTNG are detailed galaxy formation simulations that reproduce important observations such as the galaxy stellar mass function, cosmic star formation rate density, and galaxy morphological diversity. I will briefly overview the numerical framework, discuss the key physical model ingredients, and explore in detail the cosmic coevolution of galaxies and their metals. After reviewing some of the basic results, I will show that Illustris broadly reproduces the observed fundamental metallicity relation and argue that this relation alone may allow us to discriminate between bursty and non-bursty feedback models with JWST.


Prof. Whitaker

Physics Department (primary)

Control Panel