1 / 1

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.

lucio
Télécharger la présentation

l lo

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Structure of sunspot penumbral filamentsS. K. Tiwari, M. van Noort, A. Lagg, S. K. SolankiMax-Planck-InstitutfürSonnensystemforschung, Katlenburg-Lindau Weapplyanewlydevelopedspatiallycoupledinversiontechniqueto high-resolution Hinode SOT/SP observationsof a sunspot. A height-dependentatmosphericstructureisobtainedthathasledto a unifiedobservationalpictureofsunspotpenumbralfilaments, andhasgivennewinsightsintotheirphysicalnature. l lo transverse cuts along vertical dot-dashed lines StructureofAveragedPenumbralFilament longitudinal slice along horizontal dashed line Inversion result: field inclination • penumbralfilamentsareremarkablysimilarwe • can form an average (standard) penumbralfilament • radial and lateral convectionpatternsclearlyvisible • uniformityofstructureconstrains MHD simulations huy Longitudinal cutalongcentralaxis • Strong • upflow (5kms-1) • @heads; strongerdownflow • (7kms-1) • @tails • B:1kG@ • bulk;1.5-2 kG@head; 2-3.5 kG • @tails Averaged penumbral filament Peculiarfilaments • Filaments withtwoheadsortailsandshortest/ longestfilamentsqualitativelyresemblethestandardfilament; quantitative differencesare evident. • tiwari@mps.mpg.de

More Related