Last Updated：2025/11/19

(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

Source Word

accretion disk

Noun

(astronomy) A structure formed by matter falling into a gravitational source such as a galaxy, black hole, or protostar.

Japanese Meaning

降着円盤：重力源（銀河、ブラックホール、原始星など）の周囲に、引力により物質が集まり、円盤状に形成された構造

Astronomers observed fluctuations in the brightness of the accretion disk surrounding the black hole.

天文学者たちはブラックホールを取り巻く降着円盤の明るさの変動を観測した。

Sense（1）

(astronomy) A structure formed by matter falling into a gravitational source such as a galaxy, black hole, or protostar.

accretion disks

（ plural ）