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Fig. 6.

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Mapping the solar wind from PSP to the Sun during E12 in June 2022. Top: Solar wind speed at PSP with magnetic field lines traced down to the solar surface using a Parker spiral and PFSS model. Field lines connecting to the southern hemisphere are distinguished with a lighter colour. Magenta points show the Alfvén radius for each hourly extrapolation, and the solid black line shows these points binned in longitude. The longitudinal average is highlighted with a dashed horizontal line. Bottom: Carrington map of SDO/AIA 304 Å emission in grey scale with the heliospheric current sheet over-plotted with a dashed white line. Coloured markers show the variation in the Alfvén radius away from the longitudinal average. Magnetic field lines connect these points to their sources.

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