Description
Galaxies do not form in isolation, they grow within the large scale filaments, which affect their formation and evolution. However, the extent to which the cosmic filaments shape galaxies has not been yet understood. Particularly, how the proximity to filaments affects the orientation of a galaxy with respect to the filament and how it can provide important insights into its intrinsic properties. In this talk, I will present the results from the state-of-art radio survey MIGHTEE-HI conducted with the MeerKAT radio telescope (an SKA pathfinder) and show how observations of neutral hydrogen in galaxies are instrumental to enhance our knowledge of galaxies growth. Specifically, I will focus on a recent discovery of a ~15 Mpc cosmic filament in which the galaxies within show strong alignment, as well as hints of rotation around the spine, making it of the largest rotating structures seen thus far.
