2187 20160701171700.0 10.1002/asna.201211724 DOI ASTROimport-344 Lampens, P. 2013 Relative astrometry and near-infrared differential photometry of nearby southern orbital binaries with adaptive optics We present relative astrometry and differential photometry measurements for a sample of nearby southern orbital binaries making use of the technique of Adaptive Optics. The observations were made in December 2000, with the ADONIS camera mounted at the 3.6-m ESO telescope from La Silla Observatory, equipped with the broad-band near-infrared filters (J-, H-, K-passbands). Our sample contains stars which do not fit very well the empirical mean mass-luminosity relation (according to our previous study), but for which accurate parallaxes (determined by the Hipparcos satellite) and high-quality orbits were available thanks to many previous efforts. We derived accurate positions and J, H, K magnitudes of the individual components of those binaries. The individual stellar components have near-infrared colour indices well grouped in those plots and are comparable to standard single stars. Based on observations made at the 3.6-m telescope, ESO, La Silla (P66.D-0538) Prieur, J.-L. Argyle, R. W. Cuypers, J. Astronomische Nachrichten 334 3 2013 237-250 http://esoads.eso.org/abs/2013AN....334..237L published in REFERD