COupled SLope and scIntillation Detection And Ranging (CO-SLIDAR) is a recent profiling method of the vertical distribution of atmospheric turbulence strength (Cn2 profile). It takes advantage of correlations of slopes and of scintillation, both measured with a Shack-Hartmann wavefront sensor on a binary star. In this paper, we present the improved CO-SLIDAR reconstruction method of the Cn2 profile and the first on-sky results of the CO-SLIDAR profiler. We examine CO-SLIDAR latest performance in simulation, taking into account the detection noise bias and estimating error bars along with the turbulence profile. The estimated Cn2 profiles demonstrate the accuracy of the CO-SLIDAR method, showing sensitivity to both low and high altitude turbulent layers. CO-SLIDAR is tested on-sky for the first time, on the 1.5~m MeO (M\'etrologie Optique) telescope at Observatoire de la Cote d'Azur (France). The reconstructed profiles are compared to turbulence profiles estimated from meteorological data and a good agreement is found. We discuss CO-SLIDAR's contribution in the Cn2 profilers' landscape and we propose some improvements of the instrument.
@article{arxiv.1402.4295,
title = {First on-sky results of the CO-SLIDAR Cn2 profiler},
author = {Juliette Voyez and Clélia Robert and Jean-Marc Conan and Laurent M. Mugnier and Etienne Samain and Aziz Ziad},
journal= {arXiv preprint arXiv:1402.4295},
year = {2015}
}