Correlated radiation parameters of quasars and Seyfert nuclei, and the synchro-Compton reactor

Astronomy and Astrophysics – Astronomy

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Compton Effect, Galactic Nuclei, Luminosity, Quasars, Seyfert Galaxies, Synchrotron Radiation, Active Galactic Nuclei, Radiant Flux Density, Statistical Correlation, Visible Spectrum, X Ray Astronomy

Scientific paper

The synchro-Compton reactor theory for the continua of quasars and active galactic nuclei predicts that the spectral index of the Compton-scattered radiation should depend on bolometric luminosity as alpha(0) = (1-2)L(bol)/L(H), where L(H) is the luminosity associated with the magnetic energy density. This relation is tested statistically against the nonthermal spectra observed in 48 quasars and Seyfert nuclei, corrections being applied for cosmological redshift, galactic extinction, and the stellar background in the galaxies themselves. Several correlations are obtained; in particular, alpha(0) = 19.45 0.42 log L(bol). These would be compatible with synchro-Compton theory if the magnetic field strength, emission-zone radius, and mass are related by H = sq rt((10 to the 14th cm)/R)(M/M solar mass) gauss. A magnetoid - a high-entropy, supermassive oblique rotator - is a promising model for quasars.

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