Back to Volume
Paper: Twists to Solar Spicules
Volume: 470, 370 Years of Astronomy in Utrecht
Page: 49
Authors: Rutten, R. J.
Abstract: Type-II solar spicules appear as long, thin, highly dynamic strands of field-tied matter that feed significant mass and energy to the corona and solar wind. A recent result is that they exhibit torsional Alfvén waves in addition to accelerating outflows and swaying motions due to transverse Alfvénic waves. I summarize this finding and then re-interpret older observations in its light: the striking similarity of near-limb scenes in the outer blue and red wings of H α, and the tilts of absorption lines with respect to emission lines in eclipse spectra taken in 1973.
Back to Volume