Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...260..411d&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 260, no. 1-2, p. 411-418.
Astronomy and Astrophysics
Astrophysics
15
Magnetic Flux, Magnetohydrodynamic Flow, Radiative Transfer, Solar Atmosphere, Steady Flow, Stokes Law (Fluid Mechanics), Doppler Effect, Hydrodynamic Equations, Self Consistent Fields
Scientific paper
Results are presented of an investigation of theoretically derived Stokes I and V profiles emerging from an atmosphere which contains magnetic flux tubes harboring stationary siphon flows. The Stokes I and V profiles are calculated for three magnetically sensitive lines. The relative area and amplitude asymmetries of the Stokes V, as well as the zero-crossing wavelength of the V profile, are calculated for the upstream part of the flux tube arch as well as for the downstream part of the arch. It is shown that a wide range of physically realistic parameters of the simulations yield positive relative area and amplitude asymmetries with values comparable to the observations.
Degenhardt Detlev
Kneer Franz
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