Speaker
Description
Dark matter deficient galaxies (DMDGs) could have lost their dark matter halos due to interactions during their evolution; in particular, during their fusion history. The existence of these galaxies is a debated subject, both from the observational and theoretical points of view. In this work, we study the population of dark matter deficient galaxies at different redshifts using the hydrodynamical simulation IllustrisTNG, which follows the evolution of dark matter and baryonic matter. We analyse the dark matter fraction of these galaxies considering their total mass and also within their central regions. Moreover, we study the distribution of the DMDGs within their host halo at different redshifts. Finally, we analyse the evolution of their baryonic and dark matter, as the satellite orbits its host halo in order to determine if the loss of the dark matter is due to the tidal stipping that could be taking place.
