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Fig. 1


Absorption coefficient calculated as a function of frequency for a simulated plage consisting of a number of flux tubes for two different BC. Each tube is assumed to be of the same β (= 1). Each panel shows the absorption coefficient for two different kernel function. One has much broader wings () than the other (). Each mode order is represented by a different colour: red (p1), green (p2), blue (p3) etc.

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