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

Speaker: Clotilde Laigle (Oxford U)
Title: Co-evolution of galaxies and the multi-scale cosmic web: from predictions to observations
Date (JST): Thu, Mar 22, 2018, 13:30 - 14:30
Place: Seminar Room A
Abstract: The cosmic web is the place where galaxies form and evolve, while accreting gas from the large-scale filaments.
In the first part of my talk, I will discuss how this multi-scale anisotropic environment partly shapes galaxy assembly and dynamics, while relying on results from hydrodynamical simulations and photometric observations at low redshift. Extending this study at higher redshift is essential and will be possible in the future while relying on the exquisite accuracy of spectroscopic surveys such that PFS.
However the accretion of cold gas from largescale filaments can be disrupted by the huge energetic output of active galactic nuclei (AGN). In the second part of my talk, I will present preliminary results from hydrodynamical simulations about the impact of AGN on the connectivity of the cosmic web, and I will discuss how this effect could be measured in future Lyman-alpha surveys.