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Created page with "== Introduction == An accretion disk is a structure, often a circumstellar disk, formed by diffuse material in orbital motion around a central body. The central body is typically a star, but can also be a black hole, newly forming star, or any other massive celestial object. Gravitational forces pull matter inward towards the central body, but the angular momentum of the material causes it to instead form a disk-like structure around the object. == Fo..."
