Disk-Corona Model in Active Galactic Nuclei: an Observational Test

Details Disk-Corona Model in Active Galactic Nuclei: an Observational Test Disk-Corona Model in Active Galactic Nuclei: an Observational Test

Jun 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007chjaa...7..353y&link_type=abstract

Chinese Journal of Astronomy and Astrophysics, Volume 7, Issue 3, pp. 353-363 (2007).

Astronomy and Astrophysics

Astrophysics

2

Scientific paper

We compiled a sample of 98 radio-quiet active galactic nuclei observed by ASCA, Chandra, XMM-Newton, INTEGRAL and Swift with the aim of testing the formation of hot corona and the magnetic shear stress operating in a disk-corona system. We found a strong correlation between the hard X-ray luminosity, bolometric luminosity LBol and Eddington luminosity LEdd, in the sense that the fraction f of hard X-ray to the bolometric luminosity is inversely proportional to the Eddington ratio. This correlation favors the shear stress tensor being of the form of trphiproptoPgas, with which the disk-corona structure is stable.

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