Nov 20 – 23, 2023
Villa Galileo
Europe/Rome timezone

The longevity of the oldest open clusters

Not scheduled
Villa Galileo

Villa Galileo

Via del Pian dei Giullari, 42 Firenze
Session 5 Cluster Survival


Ricardo Jesus Carrera (Istituto Nazionale di Astrofisica (INAF))


Open clusters’ dynamical evolution is driven by stellar evolution, internal dynamics and external forces, which according to dynamical simulations, will evaporate them in a timescale of about 1 Gyr. However, about 10% of the known open clusters are older. They are special systems whose detailed properties are related to the dynamical evolution of clusters and the balance between mechanisms of cluster formation and dissolution. In this talk, I will present the results of our study of the spatial distribution and structural parameters of six of the oldest open clusters in the Milky Way in order to constraint their dynamical evolution and longevity. Moreover, I will discuss how the ongoing and forthcoming Galactic spectroscopic surveys such as WEAVE or 4 MOST will contribute to study the internal kinematics of open clusters, and in particular, the oldest ones with the final goal of understanding the reasons of their longevity.

Primary author

Ricardo Jesus Carrera (Istituto Nazionale di Astrofisica (INAF))

Presentation materials

There are no materials yet.