Applications of precision astrometry to studies of massive YSOs

dc.creatorRioja, M. J.
dc.creatorMoscadelli, L.
dc.creatorCesaroni, R.
dc.date2004-12-17
dc.date.accessioned2026-07-07T02:16:21Z
dc.date.available2026-07-07T02:16:21Z
dc.descriptionWe present VLBI observations of the H$_2$O maser emission towards a selection of massive young stellar objects (YSOs). In one of these sources, IRAS20126+4104, the measured proper motions confirm that the water masers spots are tracing the very root (around 100 AU) of a conical bipolar outflow emerging near the position of the embedded YSO, and are an excellent tool to investigate the structure and kinematics of the outflow/jet. We also present preliminary results of a first epoch EVN observations of a selection of 5 high-mass YSO to assess the precise association of maser spots and molecular outflows in these sources.
dc.description6 pages. 7 figures. Proceedings of the 7th European VLBI Network Symposium held in Toledo, Spain on October 12-15, 2004. Editors: R. Bachiller, F. Colomer, J.-F. Desmurs, P. de Vicente (Observatorio Astronomico Nacional), p. 303-308. Needs evn2004.cls
dc.identifierhttps://arxiv.org/abs/astro-ph/0412467
dc.identifierhttp://arxiv.org/abs/astro-ph/0412467
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/8754
dc.subjectAstrophysics
dc.titleApplications of precision astrometry to studies of massive YSOs
dc.typetext

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