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arXiv · 1309.7861

High-resolution spectroscopy of a giant solar filament

C. Kuckein·C. Denker·M. Verma
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Abstract

High-resolution spectra of a giant solar quiescent filament were taken with the Echelle spectrograph at the Vacuum Tower Telescope (VTT; Tenerife, Spain). A mosaic of various spectroheliograms (H\alpha, H\alpha\ +/- 0.5\AA\ and Na D2) were chosen to examine the filament at different heights in the solar atmosphere. In addition, full-disk images (He I 10830\AA\ and Ca II K) of the Chromspheric Telescope and full-disk magnetograms of the Helioseismic and Magnetic Imager were used to complement the spectra. Preliminary results are shown of this filament, which had extremely large linear dimensions (~ 740'') and was observed in November 2011 while it traversed the northern solar hemisphere.

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C. Kuckein, C. Denker, M. Verma. 2013-09-30. High-resolution spectroscopy of a giant solar filament. https://doi.org/10.1017/s1743921313011447

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