Goddi, C.C.GoddiMOSCADELLI, LucaLucaMOSCADELLIAlef, W.W.AlefBRAND, JANJANBRANDTARCHI, ANDREAANDREATARCHI2023-01-032023-01-0320040037-8720http://hdl.handle.net/20.500.12386/32830We have conducted Very Long Baseline Interferometry (VLBI) observations of the 22.2 GHz water masers towards three massive star forming regions. With three observing epochs, few distinct maser features were detected for each source. For features persistent in time, accurate values of the proper motions are derived. A preliminary analysis indicates that the kinematics traced by water masers is consistent with expanding motions, possibly driven by wide-angle winds.ELETTRONICOenConference paperhttp://sait.oat.ts.astro.it/MSAIS/5/index.html2004MSAIS...5..123GFIS/05 - ASTRONOMIA E ASTROFISICA