1987
DOI: 10.1007/bf00206423
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Comparison of computed fluxes for Fex and Fexiv lines with observed values at 1980 eclipse

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Cited by 4 publications
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“…Below 1.2 R ⊙ the mode of excitation of Fe x 637.4 nm line is predominantly collisional. Both collisional and radiative excitation (from the photospheric continuum radiation) are important for 1.2R ⊙ < R < 1.3R ⊙ , whereas radiative excitation becomes dominant beyond R=1.3, 1.4R ⊙ (Singh 1985, Raju & Singh 1987. For Fe xiv the dominant excitation mechanism is collisional in the inner coronal regions (up to ≈ 1.4 R ⊙ ) (Raju et al 1991).…”
Section: Introductionmentioning
confidence: 99%
“…Below 1.2 R ⊙ the mode of excitation of Fe x 637.4 nm line is predominantly collisional. Both collisional and radiative excitation (from the photospheric continuum radiation) are important for 1.2R ⊙ < R < 1.3R ⊙ , whereas radiative excitation becomes dominant beyond R=1.3, 1.4R ⊙ (Singh 1985, Raju & Singh 1987. For Fe xiv the dominant excitation mechanism is collisional in the inner coronal regions (up to ≈ 1.4 R ⊙ ) (Raju et al 1991).…”
Section: Introductionmentioning
confidence: 99%
“…Towards smaller distances collisional excitation becomes progressively more important, and at 1.3 R ¬ both mechanisms contribute the same amount. Many authors studied the excitation mechanisms of the green line (see, e.g., Raju & Singh, 1987;Raju et al, 1991;Raju & Desai, 1993). It was generally found that the excitation mechanism is mainly collisional in the inner regions (up to 1.4 R ¬ ) where the density is high, and radiative outwards.…”
Section: Introductionmentioning
confidence: 99%