Local young stellar associations

Estimating their ages through various dating techniques with minimal biases is thus of paramount importance. Aims.

We aim to determine the ages of LYSAs with the expansion rate dating technique. We estimated the ages of the LYSAs using literature membership lists, publicly available data (astrometry and radial velocities), and a recent open-source Bayesian code that implements the expansion rate method. This code in combination with simple statistical assumptions allowed us to decontaminate, identify possible substructures or populations, and estimate expansion ages.