Linear polarization of resonance lines in the absence of magnetic fields. I - Slabs of finite optical thickness

Details Linear polarization of resonance lines in the absence of magnetic fields. I - Slabs of finite optical thickness Linear polarization of resonance lines in the absence of magnetic fields. I - Slabs of finite optical thickness

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...178..269f&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 178, no. 1-2, May 1987, p. 269-276.

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56

Computational Astrophysics, Frequency Distribution, Line Shape, Linear Polarization, Resonance Lines, Solar Atmosphere, Distribution Functions, Solar Magnetic Field

Scientific paper

Effects of partial frequency redistribution on resonance polarization of spectral lines in the absence of magnetic fields are studied for resonance lines formed in finite slabs. The emphasis is on testing the validity (for polarization calculations) of various approximate forms of the so-called RII frequency redistribution function which describes the formation of resonance lines formed in dilute media. Polarization profiles obtained with the angle-dependent RII are compared to profiles calculated with the angle-averaged form of RII and its approximate versions proposed by Kneer and Ayres. A comparison with complete frequency redistribution polarization profiles is also presented.

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