Tali Palma
A new catalog of binary and grouped open clusters
Identifying binary and multiple open cluster systems is crucial for understanding their formation, evolution and dynamics in the Milky Way. In a new catalog, open clusters that form gravitationally bound pairs or groups were detected and different types of interactions were distinguished. Based on a previous catalog of 7167 clusters, tidal factors were used to estimate tidal forces and only close neighbours within 50 pc were considered. A total of 2170 star clusters within 617 paired systems and 261 groups (with three or more members) were identified. Classification was based on proper motion distributions, cluster ages, and colour-magnitude diagrams. This new method provides an improved approach to identifying star clusters that share the same spatial volume and experience notable tidal interactions. Preliminary statistical analyses of structure, distribution and mass segregation will be presented.
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A new catalog of binary and grouped open clusters