K. Sysoliatina (1), A. Just (1), I. Koutsouridou (2), E.K. Grebel (1), G. Kordopatis (8), M. Steinmetz (10), O. Bienaymé, (9), B.K. Gibson (3), J. Navarro (7), W. Reid (5,6), G. Seabroke (4) ((1) Astronomisches Rechen-Institut, Heidelberg, Germany, (2) Observatoire de Paris, France, (3) E.A. Milne Centre for Astrophysics, University of Hull, UK, (4) Mullard Space Science Laboratory, University College London, UK, (5) Department of Physics, Astronomy, Macquarie University, Sydney, Australia, (6) Western Sydney University, Australia, (7) Senior CIfAR Fellow, University of Victoria, Canada, (8) Université Côte d'Azur, Observatoire de la Côte d'Azur, CNRS, Laboratoire Lagrange, France, (9) Observatoire astronomique de Strasbourg, Université de Strasbourg, France, (10) Leibniz Institut für Astrophysik Potsdam, Germany)
