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VLBI Water Maser Proper Motion Measurements in Star-Forming Regions

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Dense Molecular Gas Around Protostars and in Galactic Nuclei

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Abstract

We review some of the recent water maser proper motion measurements in star-forming regions performed through VLBI multi-epoch observations. These observations are starting to reveal exciting perspectives, providing the full kinematics of the gas within the outflows/circumstellar disks around YSOs at scales of AUs, discovering new phenomena (e.g., isotropic mass ejections, watermaser “micro-structures” exhibiting remarkable coherent and well ordered spatio-kinematical behavior at AU scale), and opening new, puzzling questions related to the early stellar evolution.

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Author information

Authors and Affiliations

  1. Instituto de Ciencias del Espacio (CSIC)-IEEC, C/ Gran Capità 2–4, Barcelona, Spain

    J.M. Torrelles

  2. Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA, USA

    N. Patel

  3. Laboratorio de Astrofísica Espacial y Física Fundamental (INTA), Apartado de Correos, 50727, Madrid, Spain

    J.F. Gómez

  4. Instituto de Astrofísica de Andalucia (CSIC), Apartado de Correos 3004, Granada, Spain

    G. Anglada

  5. Instituto de Astronomna (UNAM), Apdo Postal 70-264, Cd. Universitaria, Mexico DF, Mexico

    L. Uscanga

Authors
  1. J.M. Torrelles
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  2. N. Patel
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  3. J.F. Gómez
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  4. G. Anglada
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  5. L. Uscanga
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Editors and Affiliations

  1. ASTRON, Dwingeloo, the Netherlands

    W.A. Baan  & Y. Hagiwara  & 

  2. JIVE, Dwingeloo, the Netherlands

    H.J. van Langevelde

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Torrelles, J., Patel, N., Gómez, J., Anglada, G., Uscanga, L. (2005). VLBI Water Maser Proper Motion Measurements in Star-Forming Regions. In: Baan, W., Hagiwara, Y., van Langevelde, H. (eds) Dense Molecular Gas Around Protostars and in Galactic Nuclei. Springer, Dordrecht. https://doi.org/10.1007/1-4020-3831-3_6

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  • DOI: https://doi.org/10.1007/1-4020-3831-3_6

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  • Print ISBN: 978-1-4020-3038-3

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