Fig. 7

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Forces in dyn for the LFM semi-opaque disk model (Sect. 2.3e) for BH spin a = 0 in BL coordinates. All axes use geometrized units, and the numbers shown are in M. The color schemes used, seen on the right of each plot, are centered at zero, namely a white diffuse color always means that the radiation force is equal to zero. We mark positive radiation forces with red filled “up” arrows and negative forces with blue or green empty “down” arrows. These marks act in the same manner as the diffuse colors and assist in the easier distinction of force signs in areas where radiation forces approach zero and hence plot colors approach white. Black empty circles denote a force exactly equal to zero (imperative for verification purposes) and gray dots denote points of null force values due to physical restrictions (e.g., the static limit or particular accreting material motion). The first line of plots (axes x-z) shows the radiation forces exerted on electrons at rest in the local rest frame (Eq. (4)). The second line (axes x−z) shows forces on electrons moving with angular velocity Ω (Eq. (10)) in the appropriate spacetime region. The third and fourth line (axes x-z) show radiation forces exerted on electrons moving with velocity profiles that mimic the SANE and MAD models' material motion. The fifth line (axes z−x) records radiation forces in an outflow region. The material there, a certain (adjustable) distance away from the horizon, additionally has a velocity component pushing it outward along the z-axis, as it would be moving in the outflow region of such systems. More spins and environments can be found at https://gitlab.com/leelamichaels/aandrt-ii-online-material.
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