Fig. 11
Theoretical optical thickness τ of fibril within Mg II h line (solid line) calculated with 2D codes using our fibril model, and the theoretical Mg II h line profile for the CB C modified model 65-4 (dashed line) calculated using our NLTE chromospheric codes. The fibril model parameters are D = 2000 km, T = 10 000 K (isothermal), p = 2 dyn cm-2 (isobaric). The x scale is given in Å (0.1 Å corresponds to 4.5 km s-1).
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