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Table 2

Mass estimates for Centaurus A.

“Classical” method applications log 10(MBH   sin2i/M)

ISAAC J band [Fe II] and Paβ lines (Marconi et al. 2006) (i = 25°) 7.39 ± 0.04
NACO H band AO [Fe II] line (Häring-Neumayer et al. 2006) (i = 45°)
CIRPASS J band Paβ line (Krajnović et al. 2007) (i = 25°)
SINFONI K band AO H2 line (Neumayer et al. 2007) (i = 34°) 7.1 ± 0.1

Spectroastrometric method applications

ISAAC J band [Fe II] line 7.39 ± 0.02
ISAAC J band Paβ line 7.39 ± 0.03
ISAAC J band [Fe II] and Paβ simultaneous fit 7.39 ± 0.02
SINFONI H band no AO [Fe II] line 7.51 ± 0.06
SINFONI H band AO [Fe II] line 7.52 ± 0.01

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