CFHT UM2019 - Presentation Details


Abstract Details

Title: Newly Discovered Dwarf Galaxies in the MATLAS Low Density Fields

Presenter: Francine Marleau

Abstract:

Recent discoveries on dwarf galaxies, such as their planar rotation around the Milky Way and Andromeda galaxies, have challenged our understanding of galaxy formation and evolution. While these dwarf galaxies and others in the Local Group and in a few nearby clusters have been studied in considerable detail, relatively few observing programs have focused on the study of this population of galaxies in low density environments. Using the optical data obtained in the context of MATLAS, a deep imaging large program at CFHT, we have systematically assembled the largest sample of dwarf galaxies in lowdensity environments. These dwarfs have magnitudes, surface brightnesses and sizes comparable to their Local Group and clustercounterparts. I will present results on their visual classification, 2D surface brightness profile fitting, local environment and clustering properties, and discuss how these new findings impact our current understanding of how these galaxies form and evolve.