DOI: https://doi.org/10.30970/jps.05.170
POLARIZED RADIATION TRANSFER PROBLEM
M. I. Stodilka
Ivan Franko National University of Lviv,
Astronomical Observatory
8 Kyrylo i Mefodii Str., Lviv, UA–79005, Ukraine
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Journal of Physical Studies 5(2), 170–176 (2001)
DOI: https://doi.org/10.30970/jps.05.170 POLARIZED RADIATION TRANSFER PROBLEMM. I. Stodilka
Ivan Franko National University of Lviv,
Astronomical Observatory |
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The present paper deals with the analysis of nonequilibrium multilevel transfer problem for polarized radiation using accelerated $Λ$-iteration to determine real level populations. We considered field free and polarization free approximations and DELO-method for the solving vector equations to determine Stokes profiles. We solved radiation transfer equations for the neutral iron in the cool and hot solar spots models. It is shown that the magnetic field has a small influenсe on the Fe I levels populations. So it is enough to use a field free approximation for calculating level populations. Polarization of the radiation sufficiently decreases the formation depths of magnetically sensitive lines. The depths of the formation of Fe I lines in the solar spots were determined.
PACS number(s): 97.10.Ex