On the Diagnostics of the Quiet Sun Magnetic Fields: Multi-Line Spectro-Polarimetric Observations and Inversion Results

Details On the Diagnostics of the Quiet Sun Magnetic Fields: Multi-Line Spectro-Polarimetric Observations and Inversion Results On the Diagnostics of the Quiet Sun Magnetic Fields: Multi-Line Spectro-Polarimetric Observations and Inversion Results

Apr 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aspc..437..189d&link_type=abstract

Solar Polarization 6. Proceedings of a conference held in Maui, Hawaii, USA on May 30 to June 4, 2010. Edited by J. R. Kuhn, D.

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Sophisticated diagnostics of the quiet Sun magnetic fields are a very important issue of modern solar physics because of the existence of their deep genetic connections with active regions. For this aim, we use high-precision spectro-polarimetric observations in about twenty spectral lines in an almost 3 nm wide spectral domain around the line Fe I 525.02 nm. These observations cover the whole solar disk. A detailed statistical analysis of magnetic strength ratios in different combinations of spectral lines is performed. For seven sufficiently strong Fe I lines observed at disk center, we applied the SIR code (Stokes Inversion based on Response functions). It was impossible to reproduce the Stokes I and V profiles of these selected lines simultaneously in the framework of models with only one atmospheric component. But a very good agreement between observations and inversion results was obtained for a model with two atmospheric components, one with magnetic field and the other without. Reliable values were found for the magnetic field strength and the filling factor.

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