AST-509intermediate

The Galactic Center & Sagittarius A*: Observation, Measurement & Evidence

At the dynamical center of the Milky Way lies Sagittarius A*, a compact radio source associated with a supermassive black hole of roughly four million solar masses. The Galactic center provides the nearest laboratory for testing supermassive black-hole gravity, stellar dynamics, accretion, and the relation between black holes and galactic nuclei.

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The Galactic Center & Sagittarius A*: Observation, Measurement & Evidence

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AST-508The Galactic Center & Sagittarius A*: Physical Mechanisms→

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AST-510The Galactic Center & Sagittarius A*: Advanced Connections→

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At the dynamical center of the Milky Way lies Sagittarius A*, a compact radio source associated with a supermassive black hole of roughly four million solar masses.

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Stars orbit the central mass under strong gravity, while gas falling inward can heat and radiate before reaching the black hole.

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