VLA Observations of OH Masers and Associated Ultracompact Continuum Sources

  • B. E. Turner
Part of the Astrophysics and Space Science Library book series (ASSL, volume 93)


We have observed 22 OH masers and associated continuum sources with the VLA at λ 18 cm, and deduce that type I masers are always associated with ultracompact continuum sources, while type II(a) (1720 MHz) masers probably never are. Implications for the type of pumping for each category of maser are discussed.


Continuum Source Ambipolar Diffusion Rotational Excitation Collisional Excitation National Radio Astronomy Observatory 
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  1. Bujarrabal, V., Destombes, J. L., Guibert, J., Marlière-Demuynck, C., Rieu, N-Q and Omont, A. 1980a, Astron, Astrophys. 81, 1–7.ADSGoogle Scholar
  2. Bujarrabal, V., Guibert, J., Rieu, N-Q and Omont, A. 1980b, Astron. Astrophys. 84, 311–316.ADSGoogle Scholar
  3. Bujarrabal, V. and Rieu, N-Q 1980c, Astron. Astrophys. 91, 283–289.ADSGoogle Scholar
  4. Dixon, R. N. and Field, D. 1979, Mon. Not. R. Astr. Soc. 189, 583–591.ADSGoogle Scholar
  5. Elitzur, M. 1976, Astrophys. J. 203, 124–131.ADSCrossRefGoogle Scholar
  6. Elitzur, M. 1979, Astron. Astrophys. 73, 322–328.ADSGoogle Scholar
  7. Elitzur, M. and de Jong, T. 1978, Astron. Astrophys. 67, 323–332.ADSGoogle Scholar
  8. Evans, N. J., Beckwith, S., Brown, R. L. and Gilmore, W. 1979, Astrophys. J. 227, 450–465.ADSCrossRefGoogle Scholar
  9. Flower, D. R. 1980, Astron. Astrophys. 83, 33–37.ADSGoogle Scholar
  10. Goss, W. M., Johansson, L.E.B., Elldér, J., Höglund, B., Rieu, N-Q and Winnberg, A. 1973, Astron. Astrophys. 28, 89–94.ADSGoogle Scholar
  11. Guibert, J., Elitzur, M. and Rieu, N-Q 1978, Astron. Astrophys. 66, 395–405.ADSGoogle Scholar
  12. Guilloteau, S., Lucas, R. and Omont, A. 1981, Astron. Astrophys. 97, 347–358.ADSGoogle Scholar
  13. Gwinn, W. D., Turner, B. E., Goss, W. M. and Blackman, G. L. 1973, Astrophys. J. 179, 789–813.ADSCrossRefGoogle Scholar
  14. Habing, H. J., Goss, W. M., Matthews, H. E. and Winnberg, A. 1974, Astron. Astrophys. 35, 1–5.ADSGoogle Scholar
  15. Johnston, I. D. 1967, Astrophys. J. 150, 33–45.ADSCrossRefGoogle Scholar
  16. Kaplan, H. and Shapiro, M. 1979, Astrophys. J. 229, L91–L96.ADSCrossRefGoogle Scholar
  17. Lucas, R., 1980, Astron. Astrophys. 84, 36–39.ADSGoogle Scholar
  18. Matthews, H. E., Goss, W. M., Winnberg, A. and Habing, H. J. 1977, Astron. Astrophys. 61, 261–274.ADSGoogle Scholar
  19. Morris, M. R. and Bowers, P. F. 1980, Astron. J. 85, 724–737.ADSCrossRefGoogle Scholar
  20. Turner, B. E. 1967, Ph. D. thesis, University of California, Berkeley.Google Scholar
  21. Turner, B. E. 1979, Astron. Astrophys. Suppl. 37, 1–332.ADSGoogle Scholar
  22. Turner, B. E. 1981, in preparation.Google Scholar
  23. Wootten, A. 1978, Moon and the Planets 19, 163–168.ADSCrossRefGoogle Scholar
  24. Wootten, A. 1981 preprint.Google Scholar

Copyright information

© D. Reidel Publishing Company 1982

Authors and Affiliations

  • B. E. Turner
    • 1
  1. 1.National Radio Astronomy ObservatoryUSA

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