An analysis of the X and UV emissions of active galactic nuclei

Details An analysis of the X and UV emissions of active galactic nuclei An analysis of the X and UV emissions of active galactic nuclei

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987acasn..28..160y&link_type=abstract

(Acta Astronomica Sinica, vol. 28, no. 2, 1987, p. 160-167) Chinese Astronomy and Astrophysics (ISSN 0275-1062), vol. 11, Sept.

Astronomy and Astrophysics

Astronomy

Active Galactic Nuclei, Emission Spectra, Spectrum Analysis, Ultraviolet Spectra, X Ray Spectra, Accretion Disks, Astronomical Models, Black Holes (Astronomy), Rates (Per Time), Synchrotron Radiation

Scientific paper

Quantitative calculations are presented for the mechanism proposed by Liu et al. (1987) to explain the statistically observed relationship between the (spherical) accretion rate of an AGN and the logarithmic gradient of its 2-keV X-ray and 250-nm UV luminosities, l(X) and l(op). The theoretical basis of the model and the steps in the analysis are explained in detail, and numerical results are presented graphically. The apparent saturation in the l(X)-l(op) curve is attributed to repeated Compton scattering (by thermal electrons) of X photons in the dense region close to the central black hole.

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