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Paper: Stokes Profiles at the Narrow Magnetic Lanes of Sunspots
Volume: 454, The 3rd Hinode Science Meeting
Page: 201
Authors: MacDonald, G. A.; Yassin, K. A.; Choudhary, D. P.
Abstract: We examine the narrow lanes of transverse and longitudinal magnetic field with opposite polarity of active region NOAA 10930 using the stokes profiles observed using the Spectropolarometer on board the Hinode mission. We compare the observations of the active region just before, during and after an X-class flare, which occurred during December 13, 2006 from 02:20 to 06:18 UT. A static fibril interacting with a rotating penumbra of opposite polarity in the hours prior to the flare is conspicuous in the temporal evolution of active region magnetic structure. Above the fibril were several small sites of hot gas in the chromosphere. During and after the flare, the fibril and its corresponding flow and profiles were much less pronounced. Our results suggest that the rotation of the spot lead to the building of energy in the active region magnetic structure resulting eventual breakdown and explosion.
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