The kinematical behaviour of Open Clusters over time

3D kinematics and age distribution of the Open Cluster population

We study the kinematical behavior of the population of open clusters (ocs) as a function of time.

We compute the weighted mean velocities and orbital parameters of 1382 members of the sample and we investigate their distributions as a function of age and by comparison to field stars.

We also investigate the rotation curve of the milky way traced by the sample of clusters and we compare it to that of other observational or theoretical studies.

Authors

Y. Tarricq, C. Soubiran, L.Casamiquela, T. Cantat-Gaudin, L.Chemin, F. Anders, T. Antoja, M. Romero-Gómez, F. Figueras, C. Jordi, A. Bragaglia, L. Balaguer-Núñez, R.Carrera, A. Castro-Ginard, A. Moitinho, P. Ramos, D. Bossini