Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984xue..conf..181e&link_type=abstract
In Max-Planck Inst. für Physik und Astrophysik X-Ray and UV Emission from Active Galactic Nuclei p 181-184 (SEE N85-17790 08-88)
Astronomy and Astrophysics
Astrophysics
Compton Effect, Emission Spectra, Photon-Electron Interaction, Seyfert Galaxies, X Ray Spectra, Astronomical Models, Proton Scattering, Relativistic Electron Beams, Spectral Energy Distribution
Scientific paper
Inverse Compton (IC) scattering of low energy photons by relativistic electrons is studied as a mechanism for the X-ray emission in Seyfert galaxies. The radiative properties of IC models applied to NGC 4151 are discussed. According to spectral and variability data, several components appear to make up the NGC 4151 spectrum from the radio to the ultraviolet. If the X-rays are the products of the first order IC scattering between relativistic electrons and photons supplied by these components, the one providing by far the largest photon energy density (hence the dominant contribution to the process) is the variable optical-ultraviolet component. This is characterized by a shortest time scale = 10 days and an estimated L(1-100 eV) = 4.6 times 10 to the 43rd power erg/sec.
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