“Rotating Black Holes: Locally Nonrotating Frames, Energy Extraction, and Scalar Synchrotron Radiation”
E231748
“Rotating Black Holes: Locally Nonrotating Frames, Energy Extraction, and Scalar Synchrotron Radiation” is a seminal research paper by James M. Bardeen that analyzes the physics of rotating (Kerr) black holes, introducing locally nonrotating frames and mechanisms for extracting energy from their rotation.
All labels observed (1)
| Label | Occurrences |
|---|---|
| “Rotating Black Holes: Locally Nonrotating Frames, Energy Extraction, and Scalar Synchrotron Radiation” canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2068334 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: “Rotating Black Holes: Locally Nonrotating Frames, Energy Extraction, and Scalar Synchrotron Radiation” Context triple: [James M. Bardeen, notablePublication, “Rotating Black Holes: Locally Nonrotating Frames, Energy Extraction, and Scalar Synchrotron Radiation”]
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A.
Penrose process for energy extraction
The Penrose process for energy extraction is a theoretical mechanism in general relativity by which rotational energy can be extracted from a spinning black hole via particle interactions in its ergosphere.
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B.
The Mathematical Theory of Black Holes
The Mathematical Theory of Black Holes is a landmark monograph that presents a rigorous, comprehensive treatment of the physics and mathematics underlying black hole solutions in general relativity.
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C.
Hayward black hole model
The Hayward black hole model is a theoretical, regular (non-singular) black hole solution in general relativity that modifies the central singularity with a de Sitter core, often studied as an alternative to classical black hole models.
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D.
Bardeen black hole model
The Bardeen black hole model is a theoretical proposal of a regular (non-singular) black hole solution in general relativity that avoids the central singularity by coupling gravity to nonlinear electrodynamics.
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E.
Kerr–Newman black hole
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.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: “Rotating Black Holes: Locally Nonrotating Frames, Energy Extraction, and Scalar Synchrotron Radiation” Target entity description: “Rotating Black Holes: Locally Nonrotating Frames, Energy Extraction, and Scalar Synchrotron Radiation” is a seminal research paper by James M. Bardeen that analyzes the physics of rotating (Kerr) black holes, introducing locally nonrotating frames and mechanisms for extracting energy from their rotation.
-
A.
Penrose process for energy extraction
The Penrose process for energy extraction is a theoretical mechanism in general relativity by which rotational energy can be extracted from a spinning black hole via particle interactions in its ergosphere.
-
B.
The Mathematical Theory of Black Holes
The Mathematical Theory of Black Holes is a landmark monograph that presents a rigorous, comprehensive treatment of the physics and mathematics underlying black hole solutions in general relativity.
-
C.
Hayward black hole model
The Hayward black hole model is a theoretical, regular (non-singular) black hole solution in general relativity that modifies the central singularity with a de Sitter core, often studied as an alternative to classical black hole models.
-
D.
Bardeen black hole model
The Bardeen black hole model is a theoretical proposal of a regular (non-singular) black hole solution in general relativity that avoids the central singularity by coupling gravity to nonlinear electrodynamics.
-
E.
Kerr–Newman black hole
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.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
astrophysics paper
ⓘ
general relativity paper ⓘ scientific paper ⓘ |
| aimsToExplain |
conditions for extracting rotational energy from black holes
ⓘ
physical effects of rotation on black hole surroundings ⓘ |
| analyzes |
energy extraction mechanisms from Kerr black holes
ⓘ
ergosphere of a Kerr black hole ⓘ frame dragging around rotating black holes ⓘ scalar field radiation in curved spacetime ⓘ |
| author | James M. Bardeen ⓘ |
| clarifies |
physical interpretation of locally nonrotating observers
ⓘ
relationship between coordinate frames and physical frames near black holes ⓘ |
| context |
Kerr metric
ⓘ
surface form:
Kerr solution of Einstein's field equations
|
| contributesTo |
theory of astrophysical processes near Kerr black holes
ⓘ
understanding of energy extraction from rotating black holes ⓘ |
| discusses |
Penrose process for energy extraction
ⓘ
surface form:
Penrose process
angular momentum of rotating black holes ⓘ conservation of energy in Kerr spacetime ⓘ geodesic motion in Kerr geometry ⓘ |
| field |
black hole physics
ⓘ
general relativity ⓘ theoretical astrophysics ⓘ |
| hasTopic |
ergoregion
ⓘ
event horizon of Kerr black holes ⓘ radiation from accelerated charges in curved spacetime ⓘ relativistic energy and angular momentum fluxes ⓘ scalar field theory in curved spacetime ⓘ test particle dynamics in strong gravity ⓘ |
| influenced |
later work on black hole accretion disks
ⓘ
later work on black hole energy extraction mechanisms ⓘ |
| introducesConcept |
locally nonrotating frames in Kerr spacetime
ⓘ
locally nonrotating observers ⓘ |
| language | English ⓘ |
| mainSubject |
Kerr metric
ⓘ
surface form:
Kerr black hole
energy extraction from black holes ⓘ locally nonrotating frame ⓘ rotating black hole ⓘ scalar synchrotron radiation ⓘ |
| studies |
particle motion near rotating black holes
ⓘ
synchrotron-like radiation from scalar charges ⓘ |
| usesSpacetimeMetric | Kerr metric ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: “Rotating Black Holes: Locally Nonrotating Frames, Energy Extraction, and Scalar Synchrotron Radiation” Description of subject: “Rotating Black Holes: Locally Nonrotating Frames, Energy Extraction, and Scalar Synchrotron Radiation” is a seminal research paper by James M. Bardeen that analyzes the physics of rotating (Kerr) black holes, introducing locally nonrotating frames and mechanisms for extracting energy from their rotation.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
James M. Bardeen
→
notablePublication
→
“Rotating Black Holes: Locally Nonrotating Frames, Energy Extraction, and Scalar Synchrotron Radiation”
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