Image Details
Caption: Figure 6.
The same as Figure 3, showing: (a) the PSP trajectory colored by r2BR(r) (red indicates positive polarity and blue indicates negative polarity); (b) the hammerhead occurrence fraction nham/ntotal proportional to the size of the lime green circles centered at each 1° bin along the PSP trajectory; and (c) the modeled HCS in solid black from E04–E13. The orange (blue) shaded regions indicate coronal holes formed by radially outgoing (incoming) open magnetic field lines.
© 2026. The Author(s). Published by the American Astronomical Society.