Extended Main Sequence Turnoffs in Open Clusters as Seen by Gaia: I. NGC 2818 and the Role of Stellar Rotation

N. Bastian, S. Kamann, I. Cabrera-Ziri +5

We present an analysis of the relatively low mass ($\sim 2400$~M${}_{\odot }$), $\sim 800$~Myr, Galactic open cluster, NGC~2818, using Gaia DR2 results combined with VLT/FLAMES spectros…