Fig. 12.
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Thomson optical depths (parallel and perpendicular to the outflow) as functions of distance from the black hole. We show two cases: instant acceleration of the outflow (dashed lines) and when an acceleration region is present, i.e., smooth acceleration (solid lines). We used a model with τ∥ = 5 and R0 = 100 Rg, where Rg is the gravitational radius.
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