Abstract
An interpretation is given of the observations of the continuous solar radiation in the spectral range 600–1700 Å. The model allows for deviations from LTE of H, C, Si and S, and is in hydrostatic equilibrium. The predicted intensity from 1680 to 1520 Å has virtually no dependence on the electron temperature variation in the optical depth range 10−3–4 × 10−5, at 5000 Å; the brightness temperature is compatible with a low electronic temperature minimum near the optical depth 10−4. The model of the low chromosphere is characterized by a steep temperature gradient. The model satisfies observations at millimeter wavelengths.
Similar content being viewed by others
References
Athay, R. A. and Canfield, R. C.: 1970, NBS Special publication 332, 65.
Athay, R. A. and Skumanich, A.: 1968, Solar Phys. 3, 181.
Bruner, E. C. and Rense, W. A.: 1969, Astrophys. J. 157, 417.
Cuny, Y. 1967, Ann. Astrophys. 30, 143.
Cuny, Y. 1968, Solar Phys. 3, 204.
Cuny, Y.: 1969, Proceedings of the Third Harvard-Smithsonian Conference on Stellar Atmospheres, p. 183.
Detwiler, C. R., Garret, D. L., Purcell, J. D., and Tousey, R.: 1961, Ann. Geophys. 17, 263.
Dumont, S.: 1967, Ann. Astrophys. 30, 861.
Gingerich, O. and de Jager, C.: 1968, Solar Phys. 3, 5.
Gingerich, O. and Rich, J. C.: 1968, Solar Phys. 3, 82.
Gingerich, O.: 1969, Paper presented at Solar Physics Meeting of AAS, Pasadena.
Goldberg, L., Noyes, R. W., Parkinson, W. H., Reeves, E. M., and Withbroe, G. L., 1968, Science 162, 95.
Gryzinski, M.: 1965, Phys. Rev. 135, 305.
Karsas, W. J. and Latter, R.: 1961, Astrophys. J. Suppl. 55, 167.
Linsky, J. L. and Avrett, E. H.: 1970, Publ. Astron. Soc. Pacific 82, 169.
McGuire, E. J.: 1968, Phys. Rev. 175, 20.
Menzel, D.: 1962, Selected Papers or Physical Processes in Ionized Plasmas, Dover Publ., New York.
Noyes, R. W. and Kalkofen, W.: 1969, Paper presented at Solar Physics Meeting of AAS, Pasadena.
Parkinson, W. H. and Reeves, E. M.: 1969, Solar Phys. 10, 342.
Peach, G.: 1967, Mem. Roy. Astron. Soc. 71, 1.
Rich, J. C.: 1966, Ph. D. Dissertation, Harvard University.
Rich, J. C.: 1967, Astrophys. J. 148, 275.
Sandlin, G. D. and Widing, K. G.: 1967, Astrophys. J. 149, L129.
Seaton, M. J.: 1962, Proc. Phys. Soc. 79, 1105.
Smith, K., Henry, R. J. W., and Barke, P. G.: 1967, Phys. Rev. 157, 51.
Tousey, R.: 1963, Space Sci. Rev. 2, 3.
Tousey, R.: 1964, Quart. J. Roy. Astron. Soc. 5, 123.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Cuny, Y. Interpretation of the solar continuum from 1680 to 600 Å. Model of the transition region photosphere-chromosphere and of the chromosphere. Sol Phys 16, 293–313 (1971). https://doi.org/10.1007/BF00162472
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00162472