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.
@article{arxiv.1309.7861,
title = {High-resolution spectroscopy of a giant solar filament},
author = {C. Kuckein and C. Denker and M. Verma},
journal= {arXiv preprint arXiv:1309.7861},
year = {2015}
}
Comments
2 pages, 1 figure, to be published in conference proceedings of IAUS 300