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searching for Rotating black hole 37 found (79 total)

Cauchy horizon (287 words) [view diff] exact match in snippet view article find links to article

shown that the spacetime behind the Cauchy horizon of a charged, rotating black hole exists, but is not smooth, so the strong cosmic censorship conjecture

Paczyński–Wiita potential (269 words) [view diff] exact match in snippet view article find links to article

is an approximation of the gravitational potential around a non-rotating black hole. It was introduced by Bohdan Paczyński and Paul Wiita in 1980. The

Hartle–Thorne metric (593 words) [view diff] exact match in snippet view article find links to article

that it is an approximation to the Kerr metric (which describes a rotating black hole) when the quadrupole moment is set as q = − a 2 a M 3 {\displaystyle

MAXI J1659-152 (395 words) [view diff] exact match in snippet view article find links to article

MAXI J1659-152 is a rapidly rotating black hole/star system, discovered by NASA's Swift space telescope on September 25, 2010. On March 19, 2013, ESA's

Karl Schwarzschild (2,982 words) [view diff] exact match in snippet view article find links to article

Schwarzschild radius, which is the size of the event horizon of a non-rotating black hole. Schwarzschild accomplished this while serving in the German army

Time travel (7,794 words) [view diff] exact match in snippet view article find links to article

find solutions in general relativity that allow for it, such as a rotating black hole. Traveling to an arbitrary point in spacetime has very limited support

MAXI (ISS experiment) (373 words) [view diff] no match in snippet view article

nebulae and space objects.[vague] MAXI helped discover the rapidly rotating black-hole/star system MAXI J1659-152. iSEEP Wide-Field MAXI (iWF-MAXI) is a

Malament–Hogarth spacetime (506 words) [view diff] exact match in snippet view article find links to article

halts. The Kerr metric, which describes empty spacetime around a rotating black hole, possesses these features: a computer can orbit the black hole indefinitely

Surface gravity (2,787 words) [view diff] exact match in snippet view article find links to article

{c^{4}}{4GM}}} in SI units). The surface gravity for the uncharged, rotating black hole is, simply κ = g − k , {\displaystyle \kappa =g-k,} where g = 1 4

Lorenzo Iorio (510 words) [view diff] exact match in snippet view article find links to article

Lorenzo (December 2011). "Perturbed stellar motions around the rotating black hole in Sgr A* for a generic orientation of its spin axis". Physical Review

Tsvi Piran (1,172 words) [view diff] exact match in snippet view article find links to article

first numerical code calculating the collapse and formation of a rotating black hole and the resulting gravitational radiation waveform. This waveform

AGILE (satellite) (1,135 words) [view diff] exact match in snippet view article

a system near the maximal limit of energy to be extracted from a rotating black hole. Gamma-ray flaring of the massive black hole Markarian 421: First

Negative energy (1,197 words) [view diff] exact match in snippet view article find links to article

hole's net energy. Thus, a black hole may slowly evaporate. For a rotating black hole, the rotation creates an ergosphere outside the event horizon. Since

Equatorial bulge (1,761 words) [view diff] exact match in snippet view article find links to article

December 2011. Iorio, L. (2011). "Perturbed stellar motions around the rotating black hole in Sgr A* for a generic orientation of its spin axis". Physical Review

Phoenix Cluster (1,394 words) [view diff] exact match in snippet view article find links to article

5 billion kilometres (3,900 astronomical units), assuming if it is a non-rotating black hole, 100 times the distance from the Sun to Pluto has a circumference

Superradiance (1,274 words) [view diff] exact match in snippet view article find links to article

instability in the interaction between a massive bosonic field and a rotating black hole. In astrophysics, a potential example of superradiance is Zel'dovich

Astrophysical jet (1,579 words) [view diff] exact match in snippet view article find links to article

field lines. Penrose mechanism. Here energy is extracted from a rotating black hole by frame dragging, which was later theoretically proven to be able

Biswarup Mukhopadhyaya (792 words) [view diff] case mismatch in snippet view article find links to article

Retrieved 22 October 2017. "Neutrino-Antineutrino Asymmetry around Rotating Black Hole". Tata Institute of Fundamental Research. 22 October 2017. Retrieved

Killing vector field (4,496 words) [view diff] exact match in snippet view article find links to article

three generators of rotations discussed above. The Kerr metric for a rotating black hole has only two Killing fields: the time-like field, and a field generating

Higher-dimensional Einstein gravity (392 words) [view diff] exact match in snippet view article find links to article

Hawking proved that the topology of the event horizon of a non-rotating black hole must be spherical. Because the proof uses the Gauss–Bonnet theorem

Static spacetime (458 words) [view diff] exact match in snippet view article find links to article

irrotational, but not static. The Kerr solution, since it describes a rotating black hole, is a stationary spacetime that is not static. Spacetimes with gravitational

Killing tensor (801 words) [view diff] exact match in snippet view article find links to article

−+++ signature convention is used. The Kerr metric, describing a rotating black hole, has two independent Killing vectors. One Killing vector corresponds

Metric tensor (general relativity) (2,397 words) [view diff] exact match in snippet view article

the 2-sphere. The Schwarzschild metric describes an uncharged, non-rotating black hole. There are also metrics that describe rotating and charged black

Shape dynamics (1,045 words) [view diff] case mismatch in snippet view article find links to article

S2CID 119261085. Gomes, Henrique; Herczeg, Gabriel (2014). "A Rotating Black Hole Solution for Shape Dynamics". Classical and Quantum Gravity. 31 (17):

Cauchy surface (2,070 words) [view diff] exact match in snippet view article find links to article

example of a Cauchy horizon is the second horizon inside a charged or rotating black hole. The outermost horizon is an event horizon, beyond which information

Chandrasekhar–Page equations (742 words) [view diff] exact match in snippet view article find links to article

S2CID 122791570. Page, Don N. (1976-09-15). "Dirac equation around a charged, rotating black hole". Physical Review D. American Physical Society (APS). 14 (6): 1509–1510

Numerical relativity (3,648 words) [view diff] exact match in snippet view article find links to article

which the gravitational wave forms resulting from formation of a rotating black hole were calculated for the first time. For nearly 20 years following

Hypercomputation (3,500 words) [view diff] exact match in snippet view article find links to article

computer operating in a Malament–Hogarth spacetime or in orbit around a rotating black hole could theoretically perform non-Turing computations for an observer

Reva Williams (971 words) [view diff] case mismatch in snippet view article find links to article

Theoretical and Numerical Investigation of a Unified Astrophysical Rotating Black Hole Model for Active Galactic Nuclei, Microquasars, and Gamma-Ray Bursters"

Goldberg–Sachs theorem (1,235 words) [view diff] exact match in snippet view article find links to article

metric and the Kerr metric, which describes a nonrotating and a rotating black hole, respectively. It is precisely this algebraic simplification which

General relativity (22,187 words) [view diff] exact match in snippet view article find links to article

limits the energy that can be extracted by classical means from a rotating black hole (e.g. by the Penrose process). There is strong evidence that the

Optical metric (4,258 words) [view diff] exact match in snippet view article find links to article

describes a non-rotating black hole, can be expressed this way. There has been progress for Kerr spacetime which describes a rotating black hole, but this case

42 (number) (4,828 words) [view diff] exact match in snippet view article

converting mass to energy, as per E=mc², by having a given mass orbit a rotating black hole is 42%, the highest efficiency yet known to modern physics. In Powers

Orbit (8,043 words) [view diff] exact match in snippet view article find links to article

January 2008. Iorio, L. (2011). "Perturbed stellar motions around the rotating black hole in Sgr A* for a generic orientation of its spin axis". Physical Review

Jürgen Ehlers (5,701 words) [view diff] exact match in snippet view article find links to article

for the discovery by Roy Kerr of his Kerr solution, describing a rotating black hole – one of the most important exact solutions. The last of these seminal

Introduction to general relativity (9,085 words) [view diff] exact match in snippet view article find links to article

as a star or a black hole, whereas the Kerr solution describes a rotating black hole. Still other solutions can describe a gravitational wave or, in the

Newman–Penrose formalism (6,419 words) [view diff] exact match in snippet view article find links to article

of the basis vectors. Saul Teukolsky (1973). "Perturbations of a rotating black hole". Astrophysical Journal. 185: 635–647. Bibcode:1973ApJ...185..635T