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Fig. 28
Overall effect on the accretion region for a black hole with spin a = 0.9. Even between the extremes of the values for θw and ϵρ there is little change in the accretion region and volume. The axis tick marks are at −15M, −10M,..., 10M, 15M. a) θw = 0 and ϵρ = −0.2; b) θw = π/ 2 and ϵρ = + 0.2.
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