Cedric Gillmann, Université Libre de Bruxelles, G-Time, Brussel, Belgium, Gregor Golabek, ETH Zurich, Zurich, Switzerland, Sean N. Raymond, Laboratoire d'Astrophysique de Bordeaux, Bordeaux, France, Paul J Tackley, ETH Zürich, Department of Earth Sciences, Zürich, Switzerland and Vinciane Debaille, Université Libre de Bruxelles, Brussels, Belgium