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Fig. 2


Relativistic reflection spectra for accretion disks that are all illuminated by an isotropic on-axis point source with precisely the same luminosity in all cases. Inclination increases to the right; each panel shows four models corresponding to four values of lamp post height h ranging from 2rg to 100rg. The dashed lines show the incident power-law spectra, while the solid lines depict the observed reflection spectra. For all models, the spin is a = 0.998, the power-law index Γ = 2, the high energy cutoff Ecut = 300 keV, and the gas is neutral (log ξ = 0). The highlighted area shows the energy band of the Compton hump used in computing the reflection strength.

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