Physics
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agufmsh41b1129k&link_type=abstract
American Geophysical Union, Fall Meeting 2005, abstract #SH41B-1129
Physics
7507 Chromosphere, 7509 Corona, 7513 Coronal Mass Ejections (2101), 7519 Flares, 7594 Instruments And Techniques
Scientific paper
Narrow-band spectral imaging, and Zeeman Stokes polarimetry of the photosphere and chromosphere helps to understand the nature of twisted magnetic fields and their propagation into the chromosphere. We will discuss high resolution, multi-spectral diagnostics using optical spectroscopy, imaging and spectropolarimetric techniques as applied to filament and flaring atmospheres. We trace the twists in magnetic fields through the trail of evidence it leaves at various levels of the atmosphere, as it propagates upward of the photosphere. The diagnostic tools used for this purpose include magnetic and velocity fields at the photosphere and lower chromosphere (Hα), and velocities in the upper chromosphere (Ca II~K line). We deduce the structure of magnetic fields, their relationship to the formation of the filament structure, and magnetic channels.
Balasubramaniam K. S.
Keil Stephen L.
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