The structure and X-ray radiation spectra of illuminated accretion disks in AGN III. Modeling fractional variability

• Published in: Astronomy and astrophysics (Berlin) Vol. 454; no. 3; pp. 741 - 752
• Main Authors: Goosmann, R. W., Czerny, B., Mouchet, M., Ponti, G., Dovčiak, M., Karas, V., Różańska, A., Dumont, A.-M.
• Format: Journal Article
• Language: English
• Published: Les Ulis EDP Sciences 01.08.2006
• Subjects: Astronomy; Astrophysics; Cosmology and Extra-Galactic Astrophysics; Earth, ocean, space; Exact sciences and technology; Physics; galaxies: Seyfert; X-ray galaxies; Black holes; Variability; X-rays: galaxies; Cosmic x-ray sources; Equivalent width; Supermassive black hole; Accretion disks; Rapid rotation; Seyfert galaxies; Production rate; galaxies: active; Active galaxy nuclei; Galaxy nuclei; Modelling; Radiative transfer; Relativistic corrections; Radial distribution; accretion, accretion disks; Hot spots; Curved space time; X-ray spectra; Active galaxies; Primary component; Anisotropy; Angular momentum; Randomness; Positions; Cosmology; Amplitude distribution; Models; radiative transfer; accretion disks

Extending the work of Czerny et al. (2004), we model the fractional variability amplitude due to distributions of hot spots co-orbiting on the accretion disk around a supermassive black hole. From defined radial distributions, our code samples random positions for the hot spots across the disk. The...