Equivalent widths obtained from the 2D model as a function of time for lines of Fe i λ5500 Å with excitation energies of Ei = 1,3,5 eV (coloured solid lines). Different oscillator strengths were used for each excitation energy to cover a range of equivalent widths from 10 mÅ to 130 mÅ at starting time, as apparent by the four groups of three lines each.
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