Image Details
Caption: Figure B1.
Wavenumber content of the four upstream wave families, RH, LH, LP-OB, and LP-FA (columns 1–4). Each panel is a ﹩{B}_{w}^{2}﹩-weighted two-dimensional histogram of spacecraft-frame frequency f against the wavenumber k = 2πf/Vφ. White curves are the plasma-frame branches (R-mode, L-mode, fast magnetosonic at the LP-OB median θkB, and shear Alfvén), Doppler shifted into the spacecraft frame.
© 2026. The Author(s). Published by the American Astronomical Society.