Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...211..463z&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 211, no. 2, March 1989, p. 463-475.
Astronomy and Astrophysics
Astrophysics
62
Field Strength, Solar Atmosphere, Solar Magnetic Field, Atmospheric Models, Infrared Spectra, Line Spectra, Magnetic Flux, Radiative Transfer
Scientific paper
A diagnostic is proposed for the horizontal distribution and vertical gradient of the magnetic field with spatially unresolved solar magnetic elements. Radiative transfer calculations are conducted to model the magnetic field structure, which is fitted to observational data from a Fourier transform spectrometer. It is found that a vertical gradient of the magnetic field strength must be present in solar magnetic fluxtubes and that, in the lower photosphere, the field strength inside the fluxtube must be horizontally nearly constant. The magnetic field strengths and gradients derived at the disk center satisfy observations near 0.6 microns, if the appropriate model fluxtube size is chosen.
Solanki Sami K.
Stenflo Jan Olof
Zayer Igor
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