• Comments on the source function equality in (Zeeman)-multiplets

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    • Keywords

       

      radiative transfer—non-LTE—Zeeman effect—polarization

    • Abstract

       

      The conditions for the source functions of a multiplet to be equal are studied for plasmas with and without magnetic fields. It is found that source function equality holds—in addition to the case of collisional predominance—only when the redistribution functions are all identical and no interlocking with other lines occurs. When magnetic fields are present, the assumption of source function equality leads to a violation of the invariance conditions of the scattering matrix and should therefore not be made.

    • Author Affiliations

       

      L. G. Stenholm1 R. Wehrse1

      1. Institut für Theoretische Astrophysik, im Neuenheimer Feld 294, Heidelberg - D 6900, Germany
    • Dates

       
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