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The proper motions of the H2O masers near W3(OH)

  • Javier Alcolea
  • Karl M. Menten
  • James M. Moran
  • Mark J. Reid
9. Proper Motion
Part of the Lecture Notes in Physics book series (LNP, volume 412)

Abstract

We describe the results of three-epoch intercontinental VLBI observations of the 22 GHz H2O masers near the compact HII region W3(OH). We have determined the relative proper motions of individual maser components. Assuming a distance to the source of 2.2 kpc, we are able to obtain a full 3-dimensional description of the kinematics of the emitting region, which indicates that the H2O masers are part of bipolar outflow.

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References

  1. Genzel R., Downes D., Moran J.M., et al., 1978, A&A 66, 13Google Scholar
  2. Guilloteau S., Baudry A., Walmsley C.M., 1985, A&A 153, 179Google Scholar
  3. Humphreys R.M., 1978, ApJS 38, 309Google Scholar
  4. Mauersberger R., Wilson T.L., Walmsley C.M., 1986, A&A 166, L26Google Scholar
  5. Turner J.L., Welch W.J., 1984, ApJ 287, L81Google Scholar

Copyright information

© Springer-Verlag 1993

Authors and Affiliations

  • Javier Alcolea
    • 1
    • 2
  • Karl M. Menten
    • 3
  • James M. Moran
    • 3
  • Mark J. Reid
    • 3
  1. 1.Harvard-Smithsonian Center for AstrophysicsCambridgeUSA
  2. 2.Centro Astronómico de YebesGuadalajaraSpain
  3. 3.Harvard-Smithsonian Center for AstrophysicsUSA

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