Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...189..263p&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 189, no. 1-2, Jan. 1988, p. 263-276.
Astronomy and Astrophysics
Astrophysics
23
Magnetic Flux, Solar Limb, Solar Magnetic Field, Solar Temperature, Statistical Analysis, Velocity Distribution, Data Reduction, Solar Activity, Stellar Models, Stellar Spectrophotometry
Scientific paper
Stokes I and V profiles of a large number of unblended Fe I lines observed at different positions on the solar disk have been analyzed. Asymmetries in the Stokes V profile are noted. The center-to-limb variation of the zero-crossing wavelength of the weak and medium strong lines is found to be consistent with the absence of stationary flows in fluxtubes. The stronger lines are shown to be more blueshifted than the weak ones at all limb distances. The fluxtube temperature structure is confirmed to be a function of the filling factor. The rms velocity amplitude is found to increase somewhat when approaching the limb, in contrast to what would be expected if the mass motions were mostly vertical.
Pantellini Filippo G. E.
Solanki Sami K.
Stenflo Jan Olof
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