Dwarf galaxies in the MATLAS low-density fields

The MATLAS deep imaging survey mapped ~142deg^2^ of the sky around nearby isolated early type galaxies using MegaCam on the Canada-France-Hawaii Telescope, reaching surface brightnesses of ~28.5-29 in the g band. The dwarf candidates were identified through a direct visual inspection of the images and by visually cleaning a sample selected using a partially automated approach, and were morphologically classified at the time of identification.

Approximately 75 per cent of our candidates are dEs, indicating that a large number of early type dwarfs also populate low-density environments, and 23.2 per cent are nucleated. Distances were determined for 13.5 per cent of our sample using pre-existing z_spec_ measurements and HI detections. We confirm the dwarf nature for 99 per cent of this sub-sample based on a magnitude cut M_g_=-18.