Spatial variations of Stokes profiles of magnetoactive Fe I lines
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| 1Stodilka, MI 1Astronomical Observatory of Ivan Franko National University of Lviv, Lviv, Ukraine |
| Kinemat. fiz. nebesnyh tel (Online) 2014, 30(6):3-13 |
| Start Page: Solar Physics |
| Language: Russian |
Abstract: We obtained solutions for polarized radiative transfer problem within 3D MHD model of the quiet solar atmosphere and studied spatial variations of Stokes profile parameters which are caused by granulation structure and small-scale magnetic fields in the quiet solar photosphere for neutral iron magnetoactive lines. We revealed an effect of Stokes V-profile parameter (amplitude, area) modulation by granulation structure of the solar photosphere. The effect is more significant in intergranules where the modulation depth reaches 50 %. We also investigated correlation of Stokes profile parameters with small-scale magnetic fields of the solar granulation. It was shown that using Stokes profile parameters of Fe I lines λ 525.02 nm and λ 524.71 nm one can construct calibration relationships that provide high correlation coefficient (≈ 0.98) when studing small-scale magnetic fields. |
| Keywords: atmosphere, Sun |
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