Advertisement

Model calculations of dusty strömgren spheres

  • Teije de Jong
  • Frank P. Israel
  • Alexander G. G. M. Tielens
Part II: Formation of Stars and H II Regions
Part of the Lecture Notes in Physics book series (LNP, volume 42)

Abstract

We compare parameters derived from the observed radio and near-infrared flux densities of a sample of 21 compact H II regions with theoretical parameters calculated for dusty Strömgren spheres. Preliminary results of this comparison suggest that the dust inside compact H II regions is quite often depleted by large factors, consistent with evaporation of the mantle material of core-mantle particles.

Keywords

Flux Density Dust Particle Flux Density Ratio Excitation Parameter Interstellar Dust 
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.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Becklin, E.E., Frogel, J.A., Kleinmann, D.E., Neugebauer, G., Persson, S.E., Wynn-Williams, C.G. 1974, Ap. J. 187 487.Google Scholar
  2. Cesarsky, C.J. Cesarsky, D.A., de Jong, T. 1975, in preparation.Google Scholar
  3. Cohen, M., Barlow, M.J. 1973, Ap. J. (Letters) 185, L37.Google Scholar
  4. Gordon, M.A., Williams, T.B. 1971, Astr. and Ap. 12, 120.Google Scholar
  5. Harris, C.S. 1973, MNRAS 162, 5P.Google Scholar
  6. Harten, R. 1975, in preparation.Google Scholar
  7. Israel, F.P. 1975, in preparation.Google Scholar
  8. de Jong, T. 1975, in “Proceedings of the Second European Regional Meeting in Astronomy”, in press.Google Scholar
  9. Lemke, D., Low, F.J. 1972, Ap. J. (Letters) 177, 53.Google Scholar
  10. Martin, A.H.M. 1972, MNRAS 157, 31Google Scholar
  11. Martin, A.H.M. 1973, MNRAS 163, 141.Google Scholar
  12. Mathews, H.E., Winnberg, A., Goss, W.M., Habing, H.J. 1975, in preparation.Google Scholar
  13. Neugebauer, G. 1974, private communication.Google Scholar
  14. Petrosian, V., Silk, J., Field, G.B. 1972, Ap. J. (Letters) 177, 69.Google Scholar
  15. Pipher, J.L., Grasdalen, G.L., Soifer, B.T. 1974, Ap. J. 193, 283.Google Scholar
  16. Pollack, J.B., Toon, O.B., Khare, B.N.T. 1973, Icarus 19, 372.Google Scholar
  17. Rubin, R.H. 1970, Astr. and Ap. 8, 171.Google Scholar
  18. Wright, E.L. 1973, Ap. J. 185, 569.Google Scholar
  19. Wynn-Williams, C.G. 1971, MNRAS 151, 397.Google Scholar
  20. Wynn-Williams, C.G. 1975, private communication.Google Scholar
  21. Wynn-Williams, C.G., Becklin, E.E., Neugebauer, G. 1972, MNRAS 160, 1.Google Scholar
  22. Wynn-Williams, C.G., Becklin, E.E., Neugebauer, G. 1974, Ap. J. 187, 473.Google Scholar
  23. Zeilik, M., Kleinmann, D.E., Wright, E.L., 1975, preprint. *** DIRECT SUPPORT *** A3418034 00004Google Scholar

Copyright information

© Springer-Verlag 1975

Authors and Affiliations

  • Teije de Jong
    • 1
  • Frank P. Israel
    • 1
  • Alexander G. G. M. Tielens
    • 1
  1. 1.Sterrewachtthe Netherlands

Personalised recommendations