Measuring monster black hole masses: Maybe mighty, maybe merely massive

Open Access

Fig. 4.

Top panel: SE M_BH values multiplied by a factor of 2.5 plotted vs. the X-ray-based values, with color-coded symbols indicating the intrinsic absorption N_H in units of 10²² cm⁻². Bottom panel: Same as the top panel, with color-coded symbols indicating log(λ_Edd). The symbols are the same as the ones used in Fig. 2.

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