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Spectropolarimetric Diagnostics at the Solar Photosphere near the Limb
Stockholm University, Faculty of Science, Department of Astronomy. (Institute for Solar Physics)
2009 (English)In: Solar Polarization 5: In Honor of Jan Stenflo / [ed] S. V. Berdyugina, K. N. Nagendra, and R. Ramelli, Astronomical Society of the Pacific , 2009, Vol. 405, 189- p.Conference paper (Refereed)
Abstract [en]

In the present work, we investigate the formation of Stokes profiles and spectro-polarimetric diagnostics in an active region plage near the limb. We use 3-D radiation-MHD simulations with unipolar fields of an average strength of 400 G, which is largely concentrated in flux tubes in which the field reaches typical kilo-Gauss values. We generate synthetic Stokes spectra by radiative transfer calculations, then we degrade the simulated Stokes signal to account for observational conditions. The synthetic data treated in this manner are compared with and found to roughly reproduce spectro-polarimetric high-resolution observations at μ=0.39 obtained by the SOUP instrument with the Swedish 1-m Solar Telescope at the beginning of 2006.

Place, publisher, year, edition, pages
Astronomical Society of the Pacific , 2009. Vol. 405, 189- p.
, Astronomical Society of the Pacific Conference Series, 405
URN: urn:nbn:se:su:diva-35877OAI: diva2:288433
Available from: 2010-01-21 Created: 2010-01-20 Last updated: 2011-02-15Bibliographically approved

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