black hole Comparison Table

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black hole comparison table

Subject has definition

extremal black hole Black hole endowed with the maximal amount of force charge possible for a given total mass.

Kerr black hole A rotating, axisymmetric black hole based on Kerr's 1963 solution to Einstein's field equations.

massive black hole Utilized in a theoretical model for quasars and active galactic nuclei, according to which the energy source is due to infall (and resultant heating) of gas and stars onto a supermassive central black hole.

massless black hole In string theory, a particular kind of black hole that may have large mass initially, but that becomes ever lighter as a piece of the Calabi-Yau portion of space shrinks. When the portion of space has shrunk down to a point, the initially massive black hole has no remaining mass - it is massless. In this state, it no longer manifests such usual black hole properties as an event horizon.

mini black hole In a chaotic early universe, black holes may form at eras as early as the Planck time. The characteristic size of these mini black holes is 10^-6 gram, the minimum mass of a collapsing inhomogeneity at that time. Larger mini black holes may form at later eras. Since conventional theories of stellar evolution show that only very massive stars can form black holes, the possible formation of mini black holes is a unique characteristic of the very early universe.

primordial black hole Small black hole hypothesized to have formed during the first 10^-43 seconds of the universe, when quantum effects were very large.

Schwarzschild black hole A nonrotating, spherically symmetric black hole derived from Karl Schwarzchild's 1916 exact solution to Einstein's vacuum field equations.

Subject	has definition
extremal black hole	Black hole endowed with the maximal amount of force charge possible for a given total mass.
Kerr black hole	A rotating, axisymmetric black hole based on Kerr's 1963 solution to Einstein's field equations.
massive black hole	Utilized in a theoretical model for quasars and active galactic nuclei, according to which the energy source is due to infall (and resultant heating) of gas and stars onto a supermassive central black hole.
massless black hole	In string theory, a particular kind of black hole that may have large mass initially, but that becomes ever lighter as a piece of the Calabi-Yau portion of space shrinks. When the portion of space has shrunk down to a point, the initially massive black hole has no remaining mass - it is massless. In this state, it no longer manifests such usual black hole properties as an event horizon.
mini black hole	In a chaotic early universe, black holes may form at eras as early as the Planck time. The characteristic size of these mini black holes is 10^-6 gram, the minimum mass of a collapsing inhomogeneity at that time. Larger mini black holes may form at later eras. Since conventional theories of stellar evolution show that only very massive stars can form black holes, the possible formation of mini black holes is a unique characteristic of the very early universe.
primordial black hole	Small black hole hypothesized to have formed during the first 10^-43 seconds of the universe, when quantum effects were very large.
Schwarzschild black hole	A nonrotating, spherically symmetric black hole derived from Karl Schwarzchild's 1916 exact solution to Einstein's vacuum field equations.

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