The rotation periods of cool stars: Measurements, uses, connections and prospects
23rd - 26th September 2019
Talk
Gaia and the membership of open clusters
Tristan Cantat-Gaudin, IEEC Barcelona
The precision and high dimensionality of the Gaia DR2 catalogue allows us to identify secure members, down to low stellar masses, in over a thousand open clusters and in sparse but kinematically coherent coeval populations. The clean colour-magnitude diagrams obtained from reliable membership lists can be used to derive photometric ages and to study features such as extended main sequence turn-offs. I will review some methods recently applied to the Gaia DR2 catalogue, and what can be expected to be achieved from the upcoming Gaia DR3.