Spectroscopic Observations of the Solar Corona During the 2017 August 21 Total Solar Eclipse: Comparison of Spectral Line Widths and Doppler Shifts Between Open and Closed Magnetic Structures
Yingjie Zhu et al 2024 ApJ 966 122
Differing widths of spectral features in observations of the solar corona suggest the dominance of heating by waves in open-field structures and localized heating in closed-field structures.