Where are you, Scutum? Tracking down a spiral arm with maser astrometry

Immer, K.K.ImmerLi, J.J.LiQuiroga-Nuñez, L. H.L. H.Quiroga-NuñezReid, M. J.M. J.ReidZhang, B.B.ZhangMOSCADELLI, LucaLucaMOSCADELLI2022-12-162022-12-1620181824-8039http://hdl.handle.net/20.500.12386/32769ELETTRONICOenWhere are you, Scutum? Tracking down a spiral arm with maser astrometryConference paper10.22323/1.344.00552018evn..confE..55IFIS/05 - ASTRONOMIA E ASTROFISICA