{ "id": "2403.07086", "version": "v1", "published": "2024-03-11T18:22:49.000Z", "updated": "2024-03-11T18:22:49.000Z", "title": "Dual Role of Accretion Disk Winds as X-ray Obscurers and UV Line Absorbers in AGN", "authors": [ "Keigo Fukumura", "Missagh Mehdipour", "Ehud Behar", "Chris Shrader", "Mauro Dadina", "Demosthenes Kazanas", "Stefano Marchesi", "Francesco Tombesi" ], "comment": "Comments welcome! (10 pages, 4 figures)", "journal": "under review for ApJ, 2024", "categories": [ "astro-ph.HE" ], "abstract": "X-ray obscuration of active galactic nuclei (AGNs) is considered in the context of ionized winds of stratified structure launched from accretion disks. We argue that a Compton-thick layer of a large-scale disk wind can obscure continuum X-rays and also lead to broad UV absorption such as in the blue wing of Civ; the former originates from the inner wind while the latter from the outer wind as a dual role. Motivated by a number of observational evidence showing strong AGN obscuration phenomena in Seyfert 1 AGNs, we demonstrate in this work, by utilizing a physically-motivated wind model coupled to post-process radiative transfer calculations, that an extended disk wind under certain physical conditions (e.g. morphology and density) could naturally cause a sufficient obscuration qualitatively consistent with UV/X-ray observations. Predicted UV/X-ray correlation is also presented as a consequence of variable spatial size of the wind in this scenario.", "revisions": [ { "version": "v1", "updated": "2024-03-11T18:22:49.000Z" } ], "analyses": { "keywords": [ "accretion disk winds", "uv line absorbers", "dual role", "x-ray obscurers", "strong agn obscuration phenomena" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable" } } }