B. Lemasle (1 and 2), P. Francois (3 and 2), G. Bono (4 and 5), M. Mottini (5), F. Primas (5), M. Romaniello (5) ((1) Université de Picardie Jules Verne, Faculté des Sciences, Amiens, France (2) Observatoire de Paris-Meudon, GEPI, Paris/Meudon, France (3) European Southern Observatory (ESO), Santiago, Chile (4) INAF-Osservatorio Astronomico di Roma, Monte Porzio Catone, Italy (5) European Southern Observatory (ESO), Garching, Germany)
