A Fundamental Plane of Black Hole Activity: Pushing Forward the Unification Scheme
- Cite this article as:
- Merloni, A., Heinz, S. & Matteo, T.D. Astrophys Space Sci (2005) 300: 45. doi:10.1007/s10509-005-1183-x
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We examine the disc-jet connection in stellar mass and supermassive black holes by investigating the properties of their compact emission in the hard X-ray and radio bands. We compile a sample of ∼100 active galactic nuclei with measured mass, 5 GHz core emission, and 2–10 keV luminosity, together with eight galactic black holes with a total of ∼50 simultaneous observations in the radio and X-ray bands. Using this sample, we study the correlations between the radio (LR) and the X-ray (LX) luminosity and the black hole mass (M). We find that the radio luminosity is correlated with bothM and LX, at a highly significant level. We show how this result can be used to extend the standard unification by orientation scheme to encompass unification by mass and accretion rate.