2004/10/20 by Andrea Merloni, Sebastian Heinz, Tiziana Di Matteo
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysical Phenomena and Observations #Relativity and Gravitational Theory #astro-ph
paper · pdf · doi:10.1007/s10509-005-1183-x
published as Astrophys.Space Sci. 300 (2005) 45-53 · 10 pages, 4 figures. To appear in the proceedings of "From X-ray Binaries to Quasars: Black Hole Accretion on All Mass Scales" (Amsterdam, July 2004). Eds T.Maccarone, R.Fender, L.Ho
arxiv created 2004/10/20 · openalex publication_date 2005/11/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/29
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 8 galactic black holes with a total of about 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 both M 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.