Program: GN-2018B-Q-102

The aim of this proposal is to perform deep (g',r',i') photometry of the globular cluster (GC) populations of two moderate-luminosity (Mv ~ -19.5) early-type galaxies. By means of GMOS-N images we plan to quantify the global properties of the GC systems of the lenticular galaxies NGC2787 and NGC3412, up to large projected galactocentric distances never reached before for these targets (~ 40 kpc). Color-color diagrams ensure a reliable selection of GC candidates, as a first step to study their color-magnitude diagrams, color and azimuthal projected distributions, as well as radial profiles. The photometry is calculated to attain +1 mag beyond the respective turn-over of the luminosity functions, so that total GC populations and specific frequencies may be computed. Through the GCs, we expect to gather information on the evolutionary history of their host galaxies, that are intermediate between normal dwarf ellipticals and giant cDs. New simulations of galaxy formation in a cosmological context, that involve GC systems, have been developed in the past years and may benefit from testing against observed properties of GCs associated to the selected galaxies, within a still poorly studied mass range.