Le 7 février 2013
À 10h30
Salle de Cours – Grande Coupole
Michele BELLAZZINI
INAF Bologne, Italie
Dwarf galaxies that evolved in isolation can provide fundamental insight on the evolutionary path of dwarf galaxies, possibly keeping record of unperturbed initial conditions of the earliest epoch of galaxy formation. The comparison of their physical properties with those of similar-mass counterparts evolved as satellite of giant galaxies can highlight the evolutionary role of environment conditions. We have started an observational campaign aimed at studying the large scale (and low-surface-brightness) structure, stellar population, HI and kinematics of nearby isolated dwarfs, at an unprecedented level of detail and sensitivity. As an example of the kind of study we are carrying on, I present the results about the first target of our survey that we have observed, VV124 = UGC4879.