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Identifying the Coronal Source Regions of Solar Wind Streams from Total Solar Eclipse Observations and in situ Measurements Extending over a Solar Cycle
2021
Astrophysical Journal Letters
This letter capitalizes on a unique set of total solar eclipse observations acquired between 2006 and 2020 in white light, Fe XI 789.2 nm (T fexi = 1.2 ± 0.1 MK), and Fe XIV 530.3 nm (T fexiv = 1.8 ± 0.1 MK) emission complemented by in situ Fe charge state and proton speed measurements from Advanced Composition Explorer/SWEPAM-SWICS to identify the source regions of different solar wind streams. The eclipse observations reveal the ubiquity of open structures invariably associated with Fe XI
doi:10.3847/2041-8213/abe775
fatcat:chh7khad5zgh5igd6a2v6nzqz4