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PIRSA ID: 21100002

Series: Cosmology and Gravitation

Event Type: Seminar

Scientific Area(s): Cosmology

End date: 2021-10-19

Speaker(s): Simeon Bird Johns Hopkins University

The large scale distribution of matter in the Universe contains the answers to many mysteries, such as the nature of dark matter, the reionization of the Universe, and the growth of galaxies. Cosmological simulations are the only way to understand these questions. I will talk about how modern current simulation models, work, discuss some new models and improvements in our latest simulation runs, especially our implementations of reionization and cosmology. I will then talk about some new work to dramatically expand the region of applicability of these simulations using machine learning. This can both to expand their dynamic range and combine different simulations to infer the physical parameters of the Universe.