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Paper: Fine Structure in Three Dimensional Magnetic Field in Polar Region
Volume: 454, The 3rd Hinode Science Meeting
Page: 375
Authors: Shiota, D.; Tsuneta, S.; Ito, H.; Kusano, K.; Nishikawa, N.; Suzuki, T. K.
Abstract: In order to discuss the propagation of Alfvén wave in the real solar atmosphere, we calculate three dimensional magnetic field using magnetic field observation obtained with Hinode and a high resolution potential field model. The modeled field reproduces fun out (canopy) structure rooted to patchy concentrations of magnetic flux (kG-patches) in the polar region. Combined with a atmosphere model, the model shows that most of the Alfvén wave propagating along the magnetic field lines can hardly pass through the transition region due to reflection there. The model suggests that strong concentration of the magnetic field may make retardation of Alfvén wave phase between neighboring field lines rooted on the edge of the canopy. The situation may be potential situation for Alfvén wave dissipation due to phase mixing process.
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