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Astronomy · L4 · The unified AGN model: same engine, different viewing angle

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How a single AGN structure — SMBH, accretion disk, torus, and jets — produces apparently different object classes depending on viewing angle.

by @openstemUpdated Astronomy
⚫ Supermassive black holeAccretion disk(UV/X-ray emission)Dusty obscuring torus(surrounds disk)Relativistic jets(perpendicular to disk)Type 2 AGN /obscured SeyfertType 1 AGN /unobscured Seyfert or quasarBlazar(highly variable)Radio galaxy(extended lobes visible)Edge-on view: torus blocks nucleusFace-on view: nucleus directly visibleViewed along jet axis (relativistic beaming)Viewed near plane of sky

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