S316p.21 — Cluster formation and evolution in M51

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Aug 10th at 6:00 PM until 7:30 PM

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Author(s): Matteo Maria Messa1, Angela Adamo1

Institution(s): 1. Stockholm University

While star formation has been long studied on the single-star scale and on the galaxy scale, the link between these two widely separated scales still needs to be firmly established. LEGUS (Legacy Extra Galactic UV Survey) has collected HST observations of 50 nearby galaxies (closer than 12 Mpc) in five bands, NUV,U,B,V,I. The main goal of this survey is the study of stellar clustering formation and evolution at all scales. The proximity of the galaxies allows us to resolve all the galaxy's components, from stars, to associations, to star clusters.
In this poster we will present the cluster population properties of the nearby interacting spiral galaxy M51. M51 is one on the galaxies with the highest SFR in the LEGUS sample. It is certainly one of the most studied nearby galaxies at any wavelength range. The current star cluster analysis is providing multiband luminosities, ages, masses, and extinctions of the huge cluster population sample (more than 10 000 clusters). The cluster population is analyzed as a function of the different galactic environments of M51 (e.g. arm and inter-arm regions, circum-nuclear ring, bar, etc.). The aim is to understand if the cluster properties change as function of the environment where they form and interact.