HR: 0800h
AN: SH41B-1129    [Abstracts]
TI: High Resolution Optical Spectroscopy, Spectropolarimetry and Spectral Imaging of Filament and Flaring Atmospheres
AU: * Keil, S L
EM: skeil@nso.edu
AF: National Solar Observatory, Sacramento Peak, Sunspot, NM 88349 United States
AU: Balasubramaniam, K S
EM: bala@nso.edu
AF: National Solar Observatory, Sacramento Peak, Sunspot, NM 88349 United States
AB: 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.
DE: 7507 Chromosphere
DE: 7509 Corona
DE: 7513 Coronal mass ejections (2101)
DE: 7519 Flares
DE: 7594 Instruments and techniques
SC: SPA-Solar and Heliospheric Physics [SH]
MN: Fall Meeting 2005