Kerr black hole
A rotating, axisymmetric black hole based on Kerr's 1963 solution to Einstein's field equations.
Kennelly-Heaviside layer ...
Kerr Black Hole
A solution to the equations of general relativity that describes the properties of a rotating black hole.
Kiloparsec (kpc) ...
Kerr Black Holes
A Kerr black hole adds another feature to the anatomy - an ergosphere. The ergosphere resides in an ellipsoidal region outside the outer event horizon.
Kerr black hole A rotating black hole.
kiloelectron volt (keV) A unit used to describe the energy of X-rays, equal to a thousand electron volts.
kilometer A unit of distance equal to 0.6214 mile.
Rotating holes are nonspherical: they are known as Kerr black holes. [D89]
(b) An object that is maximally gravitationally collapsed, and from which not even light can escape. [HH98] ...
A rotating black hole is also called a Kerr black hole. There are two event horizons, the outer and the inner. The region of space in-between the two horizons is the ergosphere.
Kerr Black Hole is a more realistic scenario. This is a rotating black hole with no electrical charge.
Charged Black Hole can be of two types.
Rotating black holes are known as Kerr black holes, which can indeed have ring-shaped singularity.
Hope this has cleared things up a bit.
Koji Mukai
for Ask a High-Energy Astronomer ...
A Dictionary of Astronomy entry for Kerr black hole
A Dictionary of World History entry for Black Hole of Calcutta
World Encyclopedia entry for Black Hole of Calcutta
The Oxford Companion to British History entry for Black Hole of Calcutta ...
These black holes are generally modeled as Kerr black holes, because the original rotation of the massive star would be conserved during the collapse.
For example, the radius of a Schwarzschild black hole is two gravitational radii and the radius of a maximally rotating Kerr black hole is one gravitational radius.
Kerr black hole
kinetic temperature
Kirkwood gaps
Kitt Peak National Observatory (KPNO)
Kitt Peak 12-Meter Telescope
Kleopatra (minor planet 216)
Kochab (Beta Ursae Minoris)
Kohoutek, Comet (C/1973 E1)
Kordylewski Clouds ...
In a rotating black hole, the singularity occurs on a ring, and is called a "ring singularity". Rotating black holes are sometimes referred to as Kerr black holes. Such a singularity may also theoretically become a wormhole**(see notes).
1969 - Roger Penrose discusses the Penrose process for the extraction of the spin energy from a Kerr black hole,
1969 - Roger Penrose proposes the cosmic censorship hypothesis, ...
 See also: Black Hole, Energy, Singularity, Star, Light
  
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