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Table 1

The 100 frequency points presently treated in our 3d radiative transfer calculations have been distributed over the important energy intervals as follows.

Energy interval No. of frequency points

 < Eion,H i 32
Eion,H i ≤  < Eion,He i 20
Eion,He i ≤  < Eion,He ii 26
Eion,He ii ≤  22

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