Spatial variations of Stokes profiles of magnetoactive lines Fe I

Solutions of the polarized radiative transfer problem were obtained within the 3D MHD model of the quiet solar atmosphere. Spatial variations of the Stokes profile parameters caused by the granulation structure and small-scale magnetic fields in the quiet solar photosphere for neutral iron magnetoac...

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Bibliographic Details
Published in:Kinematics and physics of celestial bodies 2014-11, Vol.30 (6), p.261-267
Main Author: Stodilka, M. I.
Format: Article
Language:English
Subjects:
Astronomy
Atmosphere
Correlation coefficient
Fluid flow
Granulation
Iron
Kinematics
Magnetic fields
Magnetism
Mathematical models
Modulation
Observations and Techniques
Photosphere
Physics
Physics and Astronomy
Radiative transfer
Small scale
Solar Physics
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Summary:Solutions of the polarized radiative transfer problem were obtained within the 3D MHD model of the quiet solar atmosphere. Spatial variations of the Stokes profile parameters caused by the granulation structure and small-scale magnetic fields in the quiet solar photosphere for neutral iron magnetoactive lines are studied. The modulation effect of Stokes V profile parameters (amplitude and area) by the granulation structure of the solar photosphere is revealed. This effect is significant mainly in intergranules, in which the modulation depth reaches 50%. The correlation of Stokes profile parameters with small-scale solar granulation magnetic fields is investigated. It is shown that it is possible to construct calibration relationships that provide the correlation coefficient of 0.98 in diagnostics of small-scale magnetic fields using Stokes profile parameters of Fe I lines λ 525.02 and λ 524.71 nm.
ISSN:0884-5913
1934-8401
DOI:10.3103/S0884591314060075