Stellar and circumstellar properties of visual binaries in the Orion Nebula Cluster S. Correia, G. Duchêne, B. Reipurth, H. Zinnecker, S. Daemgen, M. G. Petr-Gotzens, R. Köhler, Th. Ratzka, C. Aspin, Q. M. Konopacky and A. M. Ghez A&A, 557 (2013) A63 Published online: 30 August 2013 DOI: 10.1051/0004-6361/201220681