A Model for the X-Ray and UV Emission from Seyfert Galaxies and Galactic Black Holes

摘要: We propose that the X--ray emission from radio quiet AGN and galactic black holes is due to Comptonization of soft thermal photons emitted by underlying accretion disk in localized structures (blobs). The power per unit area produced blobs, impinging on disk, can easily dominate radiation internally disk. In this case electron temperature high energy spectrum be determined a similar way as previously studied homogeneous model (Haardt \& Maraschi 1991). However present model: a) largely independent {\it fraction} gravitational dissipated blobs; b) harder depending form factor c) UV (or for objects) luminosity not intercepted blobs larger than luminosity. framework simplified $\alpha-\Omega$ dynamo model, we make order magnitude estimates number active their size, hence compactness, finding values agreement with what observed. expected spectra correlations light curves are discussed.