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Expansion of magnetic flux concentrations: a comparison of Hinode SOT data and models
Astronomy and Astrophysics
Context: The expansion of network magnetic fields with height is a fundamental property of flux tube models. A rapid expansion is required to form a magnetic canopy. Aims: We characterize the observed expansion properties of magnetic network elements and compare them with the thin flux tube and sheet approximations, as well as with magnetoconvection simulations. Methods: We used data from the Hinode SOT NFI NaD1 channel and spectropolarimeter to study the appearance of magnetic fluxdoi:10.1051/0004-6361/200913887 fatcat:kijkl3jdq5fwrkdnk6najv5v4i