Image Details
Caption: Figure 4.
Measured (u, v) pattern speeds as a function of baseline length, shown for all MAD face-on models (i = 10∘, 170∘). Color corresponds to dimensionless black hole spin a*. Notice that prograde (a* > 0) models slope more steeply, while retrograde (a* < 0) models have a shallower slope.
© 2026. The Author(s). Published by the American Astronomical Society.