Title：Introducing cosmosTNG: a constrained cosmological galaxy formation simulation at cosmic noon

Speaker：Chris Byrohl (Institute for Theoretical Astrophysics)

Time：3pm April 15th，Monday

Tencent Meeting：149-477-082 password: 6360

Location: Lecture Hall, 3rd floor

Report in English

Abstract：

COSMOS is one of the most well-studied extragalactic fields across the electromagnetic spectrum. Recent and ongoing efforts, including JWST, further extend observations at high redshifts, enabling a detailed study of galaxy evolution from Cosmic Dawn to Cosmic Noon. I will present the cosmosTNG simulation suite, a set of constrained cosmological galaxy formation simulations run to redshift z=2 within the COSMOS field. While conventional cosmological simulations evolve a randomly generated realization of a specified power spectrum, cosmosTNG uses constrained initial conditions to reproduce the large-scale structure within this field. This approach offers a novel avenue to evaluate our galaxy formation models and to study galaxy evolution within the large-scale environment at Cosmic Noon.

CV：Chris Byrohl is currently a Postdoctoral Researcher at the Institute for Theoretical Astrophysics, Heidelberg University. During his Ph.D. at the Max Planck Institute for Astrophysics, he focused on the Lyman-alpha emission line as a versatile diagnostic in the high- redshift Universe. He is particularly interested in new methods for galaxy formation simulations, radiative transfer, and scientific big data processing to bridge the gap between theory and observations.