Formation of polarized spectral lines in atmospheres with horizontal inhomogeneities
| Autoři | |
|---|---|
| Rok publikování | 2015 |
| Druh | Článek ve sborníku |
| Konference | Proceedings of the International Astronomical Union, Volume 305 |
| Fakulta / Pracoviště MU | |
| Citace | |
| www | http://dx.doi.org/10.1017/S1743921315005128 |
| Doi | http://dx.doi.org/10.1017/S1743921315005128 |
| Obor | Astronomie a nebeská mechanika, astrofyzika |
| Klíčová slova | Polarization; radiative transfer; scattering |
| Popis | We study the problem of the generation and transfer of spectral line intensity and polarization in models of stellar atmospheres with horizontal plasma inhomogeneities. We solve the non-LTE radiative transfer problem in full 3D geometry taking into account resonant scattering polarization and its modification by magnetic fields via the Hanle effect. We show that horizontal fluctuations of the thermodynamical conditions of stellar atmospheres can have a significant impact on the linear polarization of the emergent spectral line radiation and its center-to-limb variation. |
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