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- W4281289622 endingPage "39" @default.
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- W4281289622 abstract "The spectra of active galactic nuclei exhibit broad-emission lines that presumably originate in the Broad-Line Region (BLR) with gaseous-dusty clouds in a predominantly Keplerian motion around the central black hole. Signatures of both inflow and outflow motion are frequently seen. The dynamical character of BLR is consistent with the scenario that has been branded as the Failed Radiatively Accelerated Dusty Outflow (FRADO; Czerny & Hryniewicz 2011). In this scheme, frequent high-velocity impacts of BLR clouds falling back onto the underlying accretion disk are predicted. The impact velocities depend mainly on the black-hole mass, accretion rate, and metallicity and they range from a few km s$^{-1}$ up to thousands of km s$^{-1}$. Formation of strong shocks due to the collisions can give rise to the production of relativistic particles and associated radiation signatures. In this work, the non-thermal radiation generated in this process is investigated, and the spectral energy distributions for different parameter sets are presented. We find that the non-thermal processes caused by the impacts of clouds can lead to emission in the X-ray and the gamma-ray bands, playing the cloud density and metallicity a key role." @default.
- W4281289622 created "2022-05-24" @default.
- W4281289622 creator A5001839515 @default.
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- W4281289622 creator A5024200269 @default.
- W4281289622 creator A5034690236 @default.
- W4281289622 creator A5048415692 @default.
- W4281289622 date "2022-05-01" @default.
- W4281289622 modified "2023-10-17" @default.
- W4281289622 title "Nonthermal Emission from Fall-back Clouds in the Broad-line Region of Active Galactic Nuclei" @default.
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