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Astronomy
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Active Galactic Nuclei and Quasars
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Astronomy
AST.236 Active Galactic Nuclei and Quasars
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Why does accretion onto a supermassive black hole make an active nucleus so bright?
A
The black hole surface glows like a solid star
B
Cold dust blocks all outgoing light
C
Falling gas heats up in an accretion disk and releases radiation
D
The galaxy's spiral arms reflect sunlight from Earth
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