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l l o Structure of sunspot penumbral filaments S. K. Tiwari, M. van Noort, A. Lagg, S. K. Solanki Max-Planck-Institut für Sonnensystemforschung, Katlenburg-Lindau We apply a newly developed spatially coupled inversion technique to high-resolution Hinode SOT/SP observations of a sunspot. A height- dependent atmospheric structure is obtained that has led to a unified observational picture of sunspot penumbral filaments, and has given new insights into their physical nature. huy ucture of Averaged Penumbral Filament Longitudinal cut along central axis Strong upflow (5kms -1 ) @heads; stronger downflow (7kms -1 ) @tails B:1kG@ bulk;1.5 -2 kG@head; 2-3.5 kG @tails Peculiar filaments longitudinal slice along horizontal dashed line transverse cuts along vertical dot- dashed lines Inversion result: field inclination Averaged penumbral filament penumbral filaments are remarkably similar we can form an average (standard) penumbral filament radial and lateral convection patterns clearly visible uniformity of structure constrains MHD simulations Filaments with two heads or tails and shortest/ longest filaments qualitatively resemble the standard filament; quantitative differences
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Structure of sunspot penumbral filaments S. K. Tiwari , M. van Noort , A. Lagg , S. K. Solanki Max-Planck- Institut für Sonnensystemforschung , Katlenburg-Lindau. - PowerPoint PPT Presentation
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l lo
Structure of sunspot penumbral filaments
S. K. Tiwari, M. van Noort, A. Lagg, S. K. Solanki
Max-Planck-Institut für Sonnensystemforschung, Katlenburg-Lindau
We apply a newly developed spatially coupled inversion technique to high-resolution Hinode SOT/SP observations of a sunspot. A height-dependent atmospheric structure is obtained that has led to a unified observational picture of sunspot penumbral filaments, and has given new insights into their physical nature.
huy
Structure of Averaged Penumbral Filament
Longitudinal cut along central axis Strongupflow (5kms-1)@heads; stronger downflow(7kms-1)@tails B:1kG@bulk;1.5-2 kG@head; 2-3.5 kG @tails
Peculiar filaments
longitudinal slice along horizontal dashed line
transverse cuts along vertical dot-dashed lines
Inversion result: field inclination
Averaged penumbral filament
penumbral filaments are remarkably similar we can form an average (standard) penumbral filament radial and lateral convection patterns clearly visible uniformity of structure constrains MHD simulations
Filaments with two heads or tails and shortest/ longest filaments qualitatively resemble the standard filament; quantitative differences are evident.
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