Abstract A brief overview of recent observational work on the similarities of Galactic and supermassive black holes is given. It is shown that Galactic black holes and Active Galactic Nuclei both show relativistically broadened iron lines, follow the same relationship between their X-ray and their radio luminosity (L_{radio} ∝ L_{X}^{0.7}), and show similar X-ray variability. These observations indicate that the accretion flows around black holes scale over many orders of magnitude in mass and luminosity.
Keywords X-rays: binaries galaxies: active accretion accretion physics black hole physics
It accepts original submissions from all over the world and is internationally published and distributed by IOP