Last Updated
：2025/11/19
accretion disk
（ plural ）
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(astronomy) A structure formed by matter falling into a gravitational source such as a galaxy, black hole, or protostar.
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accretion disk
Astronomers observed fluctuations in the brightness of the accretion disk surrounding the black hole.
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Astronomers observed fluctuations in the brightness of the accretion disk surrounding the black hole.
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