Fig. 5
Solid curves: variation with the final luminosity of minimum escape radius, x = xesc(k2), after a sudden change to k2 from k1 = 0, or 0.36. The same curves also show the minimum final luminosity, k2 = kesc(x) required to eject to infinity a particle previously orbiting at x. Stellar radius is X = 5.0. Dotted curve: variation of ECS radius with k2 (see text).
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