2012MNRAS.426L..51S

We find evidence that the mass M_BH of central supermassive black holes (SMBHs) correlates with the velocity dispersion σ_GCof globular cluster systems of their host galaxies. This extends the well-known M_BH-σ_sph relation between black hole mass and velocity dispersion of the host spheroidal component. We compile published measurements of both M_BH and σ_GCfor a sample of 13 systems and find the relation log (M_BH) =α+βlog (σ_GC/200), with α= 8.63 ±0.09 and β= 3.76±0.52. We also consider blue (metal-poor) and red (metal-rich) globular cluster subpopulations separately and obtain a surprisingly tight correlation using only the velocity dispersion σ_GC^red of the red clusters with α= 8.73±0.09 and β= 3.84±0.52 and an intrinsic scatter {Ux025b}₀= 0.22 dex compared to {Ux025b}₀= 0.27 dex for the M_BH-σ_sph relation of our sample. We use this M_BH-σ_sph relation to estimate the central black hole mass in five galaxies for which σ_GC^red is measured. The sudden appearance of CO emission in LHA 115-S 65