AST-426beginner

Schwarzschild Radius & Event Horizons: Foundations

For a nonrotating uncharged black hole, the Schwarzschild radius sets the location of the event horizon. The Schwarzschild radius provides a basic scale for black-hole accretion, tidal disruption, gravitational time dilation, horizon imaging, and merger dynamics.

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Schwarzschild Radius & Event Horizons: Foundations

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AST-425Magnetars & Dense Nuclear Matter: Advanced Connections→

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AST-427Schwarzschild Radius & Event Horizons: Structures & Vocabulary→

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For a nonrotating uncharged black hole, the Schwarzschild radius sets the location of the event horizon.

supported

General relativity describes gravity as spacetime geometry.

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Black-hole masses inferred from stellar and gas orbits, X-ray binaries, gravitational-wave mergers, and horizon-scale images are consistent with compact objects possessing event horizons.