Stokes diagnostics of magneto-convection. Profile shapes and asymmetries

Khomenko, Elena, Shelyag, Sergiy, Solanki, Sami K., Vögler, Alexander and Schüssler, Manfred (2004) Stokes diagnostics of magneto-convection. Profile shapes and asymmetries. Proceedings of the International Astronomical Union, 2004 (IAUS22). pp. 635-636. ISSN 1743-9213

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Abstract

We discuss the polarization signals produced in recent realistic 3D simulations of solar magnetoconvection. The Stokes profiles of the Fe I 6301.5, 6302.5, 15648 and 15652 Å Zeeman-sensitive spectral lines are synthesised and smeared to simulate the image degradation caused by the Earth’s atmosphere and finite telescope resolution. A Principal Component Analysis approach is applied to classify the profiles. We find that the classes of Stokes V profiles as well as their amplitude and area asymmetries are very close to the observations in the network and inter-network regions.

Item Type:	Article
Additional Information:	Published online: 1st June 2004.
Uncontrolled Keywords:	Sun: magnetic fields, Sun: photosphere
Subjects:	F300 Physics F500 Astronomy G100 Mathematics
Department:	Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User:	Sergiy Shelyag
Date Deposited:	23 May 2016 10:50
Last Modified:	12 Oct 2019 22:27
URI:	http://nrl.northumbria.ac.uk/id/eprint/26919

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