Fig. 6.
Maximum number of BHs with respect to their individual mass that may maintained at a stationary state inside a Plummer stellar profile with m⋆ = 0.5 M⊙ and two cases of a number of stars of N⋆ = 106, 108. Upper blue curve corresponds to our model for inhomogeneous diffusion, while the lower green one to the Spitzer instability limit derived from the energy equipartition.
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