Abstract
The energy balance equation for a general solar atmosphere without assuming the plane-parallel approximation is solved analytically. This leads to models for both the transition region and inner corona as well as for the outer corona. The form of the latter is very similar to that of the hydrostatic conduction model of Chapman (1957). However, in this paper we confine ourselves only to the former.
Model I is electron-pressure dependent but model II depends particularly on the maximum coronal temperature T m and its corresponding altitude h m. Both the models are compared with recently constructed temperature models of Chiuderi and Riani (1974), McWhirter et al. (1975), and Gabriel (1976a). It is concluded that our model II reproduces these models within a factor of not more than 2.
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References
Athay, R. G.: 1971, in C. J. Macris (ed.), Physics of the Solar Corona, D. Reidel Publ. Co., Dordrecht, Holland, p. 36.
Athay, R. G.: 1976, The Solar Chromosphere and Corona: Quiet Sun, D. Reidel Publ. Co., Dordrecht, Holland, p. 343.
Athay, R. G. and Thomas, R. N.: 1956, Astrophys. J. 123, 299.
Boland, B. C., Engstrom, S. F. T., Jones, B. B., and Wilson, R.: 1973, Astron. Astrophys. 22, 161.
Chapman, S.: 1957, Smithsonian Contr. Astrophys. 2, No. l (cited by Athay, R. G., 1976 above).
Chiuderi, C. and Riani, I.: 1974, Solar Phys. 34, 113.
Cox, D. P. and Tucker, W. H.: 1969, Astrophys. J. 157, 1157.
Delache, P.: 1968, J. Quant. Spectrosc. Radiat. Transfer 8, 317.
Delache, P.: 1969, Chromosphere - Corona Transition Region, High Altitude Observatory, Boulder, Colo., U.S.A.
Dupree, A. K. and Goldberg, L.: 1967, Solar Phys. 1, 229.
Gabriel, A. H.: 1976a, Phil Trans. Roy. Soc. London A281, 339.
Gabriel, A. H.: 1976b, Proceedings of IAU Colloquium No. 36, held at Nice (France), September, 1976 (Preprint).
Jordan, C. and Wilson, R.: 1971, in C. J. Macris (ed.), Physics of the Solar Corona, D. Reidel Publ. Co., Dordrecht, Holland, p. 219.
Landini, M. and Monsignori Fossi, B. C.: 1970, Astron. Astrophys. 6, 475.
McWhirter, R. W. P., Thonemann, P. C., and Wilson, R.: 1975, Astron. Astrophys. 40, 63.
Nakada, M. P., Chapman, R. D., Neupert, W. M, and Thomas, R. J.: 1976, Solar Phys. 47, 611.
Piddington, J. H.: 1972, Solar Phys. 27, 402.
Pottasch, S. R.: 1965, Bull. Astron. Inst. Neth. 18, 7.
Spitzer, L.: 1956, Physics of Fully Ionized Gases, Interscience Publishers, Inc., New York, p. 87.
Thomas, R. N. and Athay, R. G.: 1961, Physics of the Solar Chromosphere, Interscience Publishers, Inc., New York.
Unsöld, A.: 1968, Physik der Sternatmosphären, Springer-Verlag, Berlin, p. 671 (reprint).
Wentzel, D. G.: 1977, Solar Phys. 52, 163.
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Alam, B., Ansari, S.M.R. & Qaiyum, A. Temperature distribution in the transition region and inner corona. Sol Phys 62, 93–105 (1979). https://doi.org/10.1007/BF00150136
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DOI: https://doi.org/10.1007/BF00150136