Redistribution effects on line formation in moving stellar atmospheres—I. The isotropic redistribution function RI−A(x′, x; v) |
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| Authors: | I.M. Vardavas |
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| Affiliation: | Department of Applied Mathematics University of Sydney, Sydney, N.S.W., Australia |
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| Abstract: | The effects of photon frequency redistribution in semi-infinite and slab, differentially-moving atmospheres are examined for the case of pure Doppler broadening as described by the angle-averaged redistribution function. Results are obtained for the frequency dependent non-LTE line source functions and their corresponding emergent line intensities. These emergent line intensities are compared with those obtained assuming complete redistribution and are found to be exceedingly different in the line core. |
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