Séminaire LAM Katarina Kraljic: « The co-evolution of galaxies and the cosmic web over cosmic time »

Title: The co-evolution of galaxies and the cosmic web over cosmic time

Abstract:
The strikingly anisotropic large-scale distribution of matter—the so-called cosmic web—is made of an extended network of voids delimited by sheets, themselves segmented by high-density filaments. Matter flows within these structures toward compact nodes where they intersect. Do the properties of galaxies, such as their mass, star formation rate, or morphology, retain a memory of the large-scale cosmic flows from which they emerge? And what are the signatures of this environment at different locations within the cosmic web? In this talk, I will address these questions using a combination of observed and virtual galaxies from spectroscopic surveys and large-scale hydrodynamical simulations. I will emphasise the existing challenges on both the theoretical and observational sides and present future perspectives from ongoing and upcoming surveys.