Astrophysics and Space Science

, Volume 57, Issue 1, pp 9–15 | Cite as

Radiative origins of the solar corona

  • Paul Koch
  • Angelo James Skalafuris


Within observational accuracy, the radiation pressure 1/3aT4 at the effective solar temperature is equal to the coronal gas pressurenkT. This suggests a radiative-gas discontinuity between optically thick and optically thin regions. Ideal transitions of this nature are studied and the applicability of this model to the Sun is explored. Further empirical corroboration is obtained if the gas pressure anomalies of Gulyaev are resolved by postulating a corrective gradient of radiation pressure possibly caused by Lyman-α opacity.


Radiation Radiation Pressure Solar Corona Ideal Transition Thin Region 
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.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Bray, R. J. and Loughhead, R. E.: 1974,The Solar Chromosphere, Chapman & Hall, London.Google Scholar
  2. Dupree, A. K. and Goldberg, L.: 1967,Solar Phys. 1, 229.Google Scholar
  3. Gulyaev, R. A., Niko'skaya, K. I. and Nikol'skii, G. M.: 1963,Sov. Astron. 7, 3, 332.Google Scholar
  4. Hundhausen, A. J.: 1972,Coronal Expansion and Solar Wind, Springer Verlag.Google Scholar
  5. Imshenik, V. S. and Murosov, I. Yu.: 1970,Sov. Astron. 13, 628.Google Scholar
  6. Noyes, R. W.: 1971,Ann. Rev. Astron. Astrophys,9, 209.Google Scholar
  7. Pecker, J. C. and Schatzman, E.: 1959,Astrophysique Générale, Masson et Cie., Paris.Google Scholar
  8. Reiner, D.: 1971,Astron. Astrophys. 14, 198.Google Scholar
  9. Schatzman, E.: 1949,Ann. Astrophys. 21, 3, 203 (see also, Biermann, L.: 1946,Naturwiss 33, 118).Google Scholar
  10. Skalafuris, A. J.: 1974a,Astrophys. J. 190, 91.Google Scholar
  11. Skalafuris, A. J.: 1974b,Astrophys. Space Sci. 29, L9–17.Google Scholar
  12. Thomas, L. H.: 1930,Q. J. Math, Oxford Series,1, 239.Google Scholar
  13. Thomas, R. N. and Athay, R. G.: 1961,Physics of the Solar Chromosphere, Interscience, New York, LC: 61-6547.Google Scholar
  14. Ulmschneider, P. F., Schmitz, A., Renzini, C., Cacciari, Kalkofen, W. and Kurucz, R.: 1977, Harvard-Smithsonian preprint, No. 683.Google Scholar

Copyright information

© D. Reidel Publishing Company 1978

Authors and Affiliations

  • Paul Koch
    • 1
  • Angelo James Skalafuris
    • 2
  1. 1.New York Institute of TechnologyOld WestburyUSA
  2. 2.Naval Research LaboratoryWashington, D. C.USA

Personalised recommendations