Clocking Super-Massive Black Hole Spin with Accuracy. MCG–6-30-15:. Observations by Suzaku unambiguously confirm the extremely broad Fe K line in MCG–6-30-15 We accurately quantify how far in the accretion disk reaches (< 2 gravitational radii)
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Strong iron K line and disk reflection from around a Kerr (spinning) black hole.
No strong variations in iron line - gravitational light bending around a Kerr Black hole.
Constant Reflection hump and iron line
In MCG–5-23-16, the disk is viewed at an inclination angle of 50 degrees
In MCG–6-30-15, the disk is viewed more face-on, at an angle of 30 degrees
MCG–5-23-16 (no evidence for black hole spin)
MCG–6-30-15 (spinning black hole)
Suzaku’s Broad Bandpass
Absorption from outflow
Thermal Disk Emission?
Compton Reflection hump