Article
Astronomy and Astrophysics  (2017)

A tale of three cities=> OmegaCAM discovers multiple sequences in the color-magnitude diagram of the Orion Nebula Cluster

Beccari G., Petr-Gotzens M.G.; Boffin H.M.J., Romaniello M.; Fedele D., Carraro G.; De Marchi G., De Wit W.-J.; Drew J.E., Kalari V.M.; Manara C.F., Martin E.L.; Mieske S., Panagia N.; Testi L., Vink J.S.; Walsh J.R., Wright N.J.