Clotilde LAIGLE
(Sub-department of Astrophysics, department of Physics, University of Oxford)
The variations of galaxy stellar masses and types with the distance to filaments are quantified using the COSMOS2015 catalogue in projected slices at redshift below 1. Most massive galaxies are found closer to their neighbouring filament, and at fixed stellar mass the red fraction increases with decreasing distances. The signal does persist when removing the contribution of nodes and local density, highlighting the specific role played by the geometry of the environment. These findings are consistent with a picture in which the cosmic web drives anisotropic tides which impact the assembly history of galaxies (hence their observed properties).