Distribution of the RVs of the 1028 stars observed with GIRAFFE in NGC 6705. The solid black line and the dashed blue line represent the field stars and cluster members radial velocity distributions. The probability density function (labelled PDF) of the total sample is plotted in red. As can be observed, a mean value of 35.89 km s⁻¹ is found for the RV of the cluster members, with a standard deviation of 2.84 km s⁻¹. For the field stars, the mean RV is 19.46 km s⁻¹ and the standard deviation 35.95 km s⁻¹.