Image Details
Caption: Figure 5.
Energy-dependent polarization angle transport with and without VB for three near-pole-on geometries (rows) for B = 10, M = 1.7 M⊙ and r⋆ = 12 km with viewing angles of θv = {5°, 15°, 30°} (top to bottom). In each row, the first column shows ﹩\hat{{\boldsymbol{k}}}\cdot {\hat{n}}_{{ \mathcal S }}﹩ and the second shows ﹩\cos 2\chi ﹩ with VB disabled. The remaining columns show ﹩\cos 2\chi ﹩ with VB enabled at 0.1, 1, 10, and 100 keV. Comparing columns within each row demonstrates how adiabatic VB reorganizes polarization angle structure in a strongly energy-dependent manner for polar viewing angles, approaching the VB-off case at low energies and on-axis views. The color scale indicates ﹩\cos 2\chi ﹩ at the IP, along with a random sample of overlaid polarization angle vectors. As the VB polarization recoupling radius becomes large compared to the emission region, the polarization vectors become more aligned (bottom row panels).
© 2026. The Author(s). Published by the American Astronomical Society.