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VLBI observations of the H2O supermaser outburst in the orion nebula

  • L. I. Matveyenko
  • P. J. Diamond
  • D. A. Graham
  • W. Junor
7. Water Masers in Star-Forming Regions
Part of the Lecture Notes in Physics book series (LNP, volume 412)

Abstract

We have conducted a campaign of annual VLBI observations of the H2O supermaser region in the Orion-KL. Most of our observations have been conducted with a small number (≈ 3) of antennas. Here we report on a 7 station observation taken in 1985. We have produced an image of the supermaser region. Our data indicate that the masers lie along an approximately E-W line, and that there is a significant velocity gradient across the maser region. We suggest that the masers originate in several thin rings in a rotating, expanding disc of gas and dust.

Keywords

Flux Density Optical Depth Position Angle Compact Component VLBI Observation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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Copyright information

© Springer-Verlag 1993

Authors and Affiliations

  • L. I. Matveyenko
    • 1
  • P. J. Diamond
    • 2
  • D. A. Graham
    • 3
  • W. Junor
    • 4
  1. 1.Institute for Space ResearchMoscowRussia
  2. 2.NRAOSocorroUSA
  3. 3.MPHR, Auf Dem HügelBonnGermany
  4. 4.NRAOSocorroUSA

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