What is the structure of AGN?
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The structure of active galactic nuclei (AGN) is a complex engine centered around a supermassive black hole. The driving mechanism of AGN accretion disks is believed to be viscous, with an anomalous, turbulent viscosity at work due to the inefficiency of molecular viscosity in astrophysical disks. The 2D structure of these disks can be split into a hydrostatic vertical configuration and a radial quasi-Keplerian viscous flow. The disk thermal and viscous instabilities are important factors in understanding the behavior of AGN accretion disks ^[Dong]. A unified model for the structure and appearance of accretion powered sources, including AGN, has been proposed, with MHD winds launched from the accretion disks playing a central role. These winds manifest as blueshifted absorption features in the UV and X-ray spectra of these sources, and their density distribution determines the appearance of these features based on the observer's inclination angle ^[Kazanas, Fukumura, Behar, Contopoulos, Shrader]. The structure of AGN depends on the wind mass flux, observer's inclination angle, and the logarithmic slope between the O/UV and X-ray fluxes ^[Kazanas, Fukumura, Behar, Contopoulos, Shrader].
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| The paper does not provide information about the structure of AGNs. | |
44 Citations | The paper presents a unified model for the structure and appearance of AGN, emphasizing the role of MHD winds launched from the accretion disks that power these objects. |
| The paper does not provide information about the structure of AGN. | |
| The provided paper does not explicitly mention the structure of the AGN. | |
Open access•Posted Content | The paper presents a unified model for the structure and appearance of AGN, with emphasis on the role of MHD winds launched from the accretion disks that power these objects. |
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