Kerr–Newman black hole
E43148
asymptotically flat spacetime
black hole solution
exact solution of Einstein field equations
rotating charged black hole
stationary axisymmetric spacetime
type D Petrov spacetime
The Kerr–Newman black hole is a theoretical solution of Einstein’s field equations describing a rotating, electrically charged black hole characterized solely by its mass, angular momentum, and charge.
Aliases (3)
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
asymptotically flat spacetime
→
black hole solution → exact solution of Einstein field equations → rotating charged black hole → stationary axisymmetric spacetime → type D Petrov spacetime → |
| belongsTo |
class of electrovacuum solutions
→
|
| canHave |
magnetic charge in generalized solutions
→
|
| characterizedBy |
electric charge
→
mass → spin → |
| definedIn |
four-dimensional spacetime
→
|
| describedByTheory |
general relativity
→
|
| generalizes |
Kerr black hole
→
Reissner–Nordström black hole → |
| hasChargeType |
electric charge
→
|
| hasConservedQuantity |
angular momentum
→
electric charge → mass-energy → |
| hasCoordinateSystem |
Boyer–Lindquist coordinates
→
|
| hasEffect |
Lense–Thirring precession
→
frame dragging → |
| hasEventHorizon |
inner Cauchy horizon
→
outer event horizon → |
| hasExtremalCondition |
M^2 = a^2 + Q^2 in geometric units
→
|
| hasInnerHorizonRadiusFormula |
r_- = M - sqrt(M^2 - a^2 - Q^2)
→
|
| hasLimitingCase |
naked singularity when M^2 < a^2 + Q^2
→
|
| hasOuterHorizonRadiusFormula |
r_+ = M + sqrt(M^2 - a^2 - Q^2)
→
|
| hasParameter |
angular momentum
→
electric charge → mass → |
| hasRegion |
ergosphere
→
|
| hasSingularity |
ring singularity
→
|
| hasSurface |
Killing horizon
→
|
| hasSymmetry |
axisymmetry
→
stationary symmetry → |
| hasThermodynamicProperty |
Bekenstein–Hawking entropy
→
Hawking temperature → |
| hasTopology |
R^2 × S^2 outside the ring singularity
→
|
| metricType |
Kerr–Newman metric
→
|
| namedAfter |
Ezra Newman
→
Roy Kerr → |
| obeys |
cosmic censorship conjecture when non-extremal
→
|
| reducesTo |
Kerr black hole when charge is zero
→
Reissner–Nordström black hole when angular momentum is zero → Schwarzschild black hole when charge and angular momentum are zero → |
| satisfies |
no-hair theorem parameters mass, charge, angular momentum
→
|
| solutionOf |
Einstein–Maxwell equations
→
|
| usedIn |
studies of black hole thermodynamics
→
tests of the no-hair theorem → |
Referenced by (8)
| Subject (surface form when different) | Predicate |
|---|---|
|
Boyer–Lindquist coordinates
("Kerr–Newman metric")
→
Einstein–Maxwell equations ("Kerr–Newman solution") → |
usedFor |
|
Kerr–Schild coordinates
("Kerr–Newman spacetime")
→
|
appliesTo |
|
Israel–Carter–Robinson uniqueness theorems
→
|
concerns |
|
The Mathematical Theory of Black Holes
("Kerr–Newman metric")
→
|
covers |
|
Kerr metric
("Kerr–Newman metric")
→
|
isGeneralizedBy |
|
Kerr–Newman black hole
("Kerr–Newman metric")
→
|
metricType |
|
black hole no-hair theorem
→
|
relatedConcept |