Browsing by Author "Marchi, G. De"

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    • 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.; Marchi, G. De; de Wit, W.J.; Drew, J. E.; Kalari, V. M.; Manara, Carlo Felice; Martin, Eduardo L.; Mieske, S.; Panagia, N.; Testi, L.; Vink, Jorick S.; Walsh, J. R.; Wright, N. J. (2017-07-27)
      As part of the Accretion Discs in H$\alpha$ with OmegaCAM (ADHOC) survey, we imaged in r, i and H-alpha a region of 12x8 square degrees around the Orion Nebula Cluster. Thanks to the high-quality photometry obtained, we ...