Fig. 19
Hα autocorrelation matrices. The gray scale represents the linear correlation coefficient (r). White corresponds to a positive correlation (r = 1) and black to an anti-correlation (r = −1). Top left: observed data. Top right: dipole-only model with γ = 5/3. Bottom left: dipole-only model with γ = 1.2. Bottom right: dipole+octupole model with γ = 1.2.
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