Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...171..368m&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 171, no. 1-2, Jan. 1987, p. 368-377.
Astronomy and Astrophysics
Astrophysics
17
Absorption Spectra, Solar Magnetic Field, Stellar Magnetic Fields, Stokes Law Of Radiation, Zeeman Effect, Atomic Structure, Main Sequence Stars, Radiative Transfer, Solar Atmosphere
Scientific paper
The shape of Stokes line profiles formed in the presence of a magnetic field does not only depend on the magnetic field structure and the effective Landé factor, but also on the type of anomalous Zeeman splitting pattern, which is determined by the atomic structure. To explore this dependence, the authors have first expanded the profiles of the σ and π absorption coefficients in terms of the various moments characterizing the Zeeman pattern. Next they have found expressions for the moments in terms of the quantum numbers and Landé factors of the atomic levels involved in the transition. These results have been combined to give an expansion of the profiles of the absorption coefficients in terms of the atomic parameters directly. It is shown that the same treatment also applies to the anomalous dispersion profiles.
Mathys Gautier
Stenflo Jan Olof
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