Linked from

The 12 pages that link to Schwarzschild radius, each with the reason it gives.

• Black holeBroader topic: It sets the horizon’s size from the black hole’s mass.

• Event horizonRelated: For a Schwarzschild black hole, the horizon lies at this characteristic radius.

• Escape velocityBroader topic: Setting Newtonian escape speed equal to light speed yields this radius, though the derivation is not relativistic.

• Schwarzschild metricBroader topic: It sets the characteristic length scale in the metric and equals 2GM/c².

• Compton wavelengthRelated: Comparing it with a particle’s Compton wavelength motivates the Planck scale as a quantum-gravity threshold.

• Planck lengthCompared with: Equating this gravitational radius with a particle’s Compton wavelength motivates the Planck scale.

• Karl SchwarzschildBroader topic: This characteristic radius is named for the solution Schwarzschild found.

• Sagittarius A*Related: The inferred mass sets the approximate scale of the region imaged around Sagittarius A*.

• Andrea M. GhezRelated: Constraining the mass inside a sufficiently small region helped establish that the central object is a black hole.

• Astronomical black holesBroader topic: It relates a black hole’s mass to the size of its event horizon.

• Buchdahl's theoremRelated: The theorem expresses its minimum stellar radius as a fraction of this scale.

• Micro black holeRelated: It sets the horizon’s scale and links a micro black hole’s mass to its size.