The Solar-Cycle Temporal Variation of the Solar Wind Charge Exchange X-ray Lines

Zhijie Qu, Dimitra Koutroumpa, Joel N. Bregman +2

Solar wind charge exchange (SWCX) is the primary contamination to soft X-ray emission lines from the Milky Way (MW) hot gas. We report a solar-cycle ($\approx 10$ yr) temporal vari…