Astronomy Colloquium - Erwin Lau

Event time: 
Thursday, September 14, 2017 - 2:30pm
  • Erwin Lau
Speaker Institution: 
  • Yale University
Talk Title: 
"Modeling baryonic physics in galaxy clusters with cosmological simulations"
Event description: 
Galaxy clusters play an important role in modern precision cosmology. As the most massive virialized objects in the universe, their abundance depends sensitively on cosmological parameters. However, uncertainties in galaxy cluster physics pose serious challenges to using forthcoming observations to make advances in cosmology with galaxy clusters. 
In this talk, I will highlight how we can improve our understanding of galaxy cluster physics with the state-of-the-art numerical simulations. In particular, I will present results from the “Omega500” simulation, a high-resolution hydrodynamic simulation suite of galaxy cluster formation that follows the evolution of dark matter and baryons in a realistic cosmological setting. I will also outline upcoming challenges in the computational modelling of major physical processes in galaxy clusters, and how we can address them in anticipation of upcoming multi-wavelength cluster surveys in the next decade. 
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