Fig. 8.

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Average fraction of mass accreted by different MBHs at z = 0 (fBHAM) via stellar captures (purple squares), cold gas accretion (blue right triangles), hot gas accretion (orange left triangles), and accumulated seed mass (green circles) without (top panel) and with (bottom panel) an initial prompt phase (see main text). The margin of ±1 standard deviation of log10fBHAM for each type of channel is highlighted with the same-color shaded area.
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