A Multiplicity Survey of the Rho Ophiuchi Molecular Clouds

We present a volume-limited multiplicity survey with magnitude cutoff (K = 0.1 (=< 2.5 mag) at the diffraction limit. After taking the background density into account the degree of multiplicity is 29.1%+-4.3% and thus only marginally higher than the value 23.5%+-4.8%derived for the given separation range for the main-sequence solar-like stars in the solar neighbourhood (Duquennoy & Mayor 1991). We discuss the implications of these findings.