Disk accretion is the process by which material from a surrounding disk of gas and dust falls into a central object, such as a star or black hole, due to gravitational forces. This process is crucial in the formation and growth of celestial bodies, as it enables them to gather mass and energy over time. The material spirals inward through the disk, losing angular momentum and gaining kinetic energy, which often leads to the emission of radiation as it gets closer to the central object.
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