Stellar Formation in NGC 2366: Searching for clusters and associations using unsupervised algorithms

GUSTAVO BAUME; CARLOS FEINSTEIN; MARIA JIMENA RODRIGUEZ; MARCELA VERGNE

La Plata

Otro; XI La Plata International School: S-PLUS: The Universe in True Colors; 2020

FCAG-UNLP

Using the amazing resolution power of the Hubble Space Telescope (HST), we investigated thecharacteristics of the young stellar population in the spiral galaxy NGC 2366. In particular, wefocused our attention in its hierarchical clustering distributions and the properties of the groups.As this galaxy shows a prominent He blue sequence, we analysed this populations and used it toshow the spatial distribution of the stellar formation over time.The galaxy was observed in two bands by the HST covering almost the central an intermediateparts of NGC 2366 with includes all the mayor stellar formation regions. HST data allowed to selectthe blue and young stars and therefore select the young population. Then, through the path linkagecriterion (PLC), we found 701 young star groups and estimated their fundamental parameters, suchas their stellar densities, sizes, number of members, and luminosity function (LF) slopes. We alsoperformed a fractal analysis to determine the clustering properties of this population. We builta stellar density map and dendrograms corresponding to the galactic young population to detectlarge structures and depict their main characteristics.