Ongoing Works

LEWIS paper V (Doll et al. 2025, accepted for publications on A&A): Using MUSE data from LEWIS and previously published results on stellar kinematics, we are analysing the stellar population and star-formation histories of UDGs and LSBs in the LEWIS sample. We will present the average ages, metallicities, and alpha-abundances together with star-formation histories of UDGs and LBSs in Hydra I. Preliminary results show the existence of a correlation between the stellar population properties of UDGs and the location in the cluster, pointing toward the existence of two different classes of UDGs in Hydra I with a different formation pathway.

LEWIS paper VI (Rossi et al. in preparation): We are finalising the analysis on a peculiar galaxy in the LEWIS sample, UDG6, which, among the whole sample, is the only UDG which shows clear emission lines, suggesting the presence of star-formation currently ongoing.