Figure 1. Top row: orthogonality condition (left panel) and current-sheet condition (right panel) for a single spinning BH (dimensionless spin parameter a = J/M2 = 0.7), using different prescriptions for the current: fully discrete approach (light-blue solid line), driver1 plus discrete2 (red dotted line), driver1 plus continuum (dark-blue dashed line), driver1 plus driver2 (black long-dashed line). Bottom row: the same as in the top row, but for the equal-mass non-spinning binary BH system s0.
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