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Table 3.

Spin values of a M = 3 × 108M black hole that match the co-moving precession period of 7.48 years (observed 10 years).

Surface density slope s Spin parameter a
10 −0.5 0.18/−0.37 ± 0.01
50 −0.5 0.81 ± 0.01
100 −0.5 0.97 ± 0.01

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