Lampens, P. ; Prieur, J.-L. ; Argyle, R. W. ; Cuypers, J.

published in Astronomische Nachrichten, 334, pp. 237-250 (2013)

Abstract: 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)

DOI: 10.1002/asna.201211724
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