Multiwavelength study in M33 star clusters

Our goal is to test the robustness of clusters ages and masses, and possibly improve on existing ones both by expanding the wavelength range of the spectral-energy distribution (SED) fits and by using more recent population synthesis models.

The rationale for this experiment is to verify the sensitivity of the clusters physical parameters to observational setups and model choices that span those commonly found in the literature. We derive the physical parameters of 137 clusters, using SEDs measured in eight UV-to-I bands, including H{alpha}, from GALEX and ground-based images. We also add the 24{mu}m image from the Spitzer Space Telescope to help break some age degeneracies.