Optimal M _bh– M _sph and M _bh–σ ₀ relations for a dozen "core" galaxies (red dots) and a dozen non-barred Sérsic galaxies (blue circles). Blue crosses denote five barred Sérsic galaxies used in Table 1. The dashed lines show the extrapolation of these relations beyond M _sph = 7 × 10 ¹⁰  M _☉ The dotted lines in the left panel delineate the one-sigma uncertainty on the M _bh– M _sph relation for the Sérsic galaxies. The short lines emanating from the data points show their old location based on the data in Häring & Rix (2004). The faint dot-dashed gray lines in the right panel correspond to a sphere of influence of 0 1 at distances of 3 Mpc (lower) and 6 Mpc (upper), respectively.