APEC Seminar (Astronomy - Particle Physics - Experimental Physics - Cosmology)

Speaker: Davide Martizzi (Bohr Institute, Copenhagen)
Title: Tracing the baryonic cosmic web: predictions from cosmological simulations
Date (JST): Thu, Apr 11, 2019, 13:30 - 14:30
Place: Seminar Room A
Related File: 2287.pdf
Abstract: Cosmological hydrodynamical simulations with resolution high enough to resolve the properties of dark matter, gas and galaxies from hundreds of Mpc to sub-kpc scales are now available to the community.
These simulations constitute an ideal tool to make testable predictions about observable effects, or to calibrate analysis methods that will be used on real data in the future. In this talk, I will highlight my recent work in collaboration with the IllustrisTNG team, which aimed at characterizing the baryonic cosmic web. The main result is a series of predictions for the census of baryons in different phases and in different regions of the cosmic web (knots, filaments, sheets, voids).
These predictions can be used as a guideline to design methods to detect baryons in all phases at multiple redshifts and in multiple regions of the universe. In the second part of the talk, I will discuss some potential follow-ups of this work in the area of Warm-Hot Intergalactic Medium searches and in in the study of galaxy formation in connection to the large scale cosmic web.