Chandrasekhar–Friedman–Schutz instability
E7942
The Chandrasekhar–Friedman–Schutz instability is a gravitational-radiation-driven instability in rotating stars that can cause certain oscillation modes to grow by emitting gravitational waves.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Chandrasekhar–Friedman–Schutz instability canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T93529 — 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.
Target entity: Chandrasekhar–Friedman–Schutz instability Context triple: [Subrahmanyan Chandrasekhar, knownFor, Chandrasekhar–Friedman–Schutz instability]
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A.
Oppenheimer–Snyder model
The Oppenheimer–Snyder model is a pioneering theoretical description of gravitational collapse in general relativity, providing one of the first rigorous treatments of how a massive star can form a black hole.
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B.
Kasner
Kasner is the birth surname of former German chancellor Angela Merkel, reflecting her family name before marriage.
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C.
Schwarzschild black hole
A Schwarzschild black hole is the simplest theoretical black hole solution in general relativity, describing a static, spherically symmetric, non-rotating, uncharged mass with an event horizon defined by the Schwarzschild radius.
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D.
black hole no-hair theorem
The black hole no-hair theorem is a principle in general relativity stating that stationary black holes are completely characterized by only a few macroscopic parameters—mass, electric charge, and angular momentum—regardless of the details of the matter that formed them.
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E.
Bekenstein–Hawking entropy
Bekenstein–Hawking entropy is the thermodynamic entropy associated with a black hole, proportional to the area of its event horizon and fundamental in linking gravity, quantum theory, and thermodynamics.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Chandrasekhar–Friedman–Schutz instability Target entity description: The Chandrasekhar–Friedman–Schutz instability is a gravitational-radiation-driven instability in rotating stars that can cause certain oscillation modes to grow by emitting gravitational waves.
-
A.
Oppenheimer–Snyder model
The Oppenheimer–Snyder model is a pioneering theoretical description of gravitational collapse in general relativity, providing one of the first rigorous treatments of how a massive star can form a black hole.
-
B.
Kasner
Kasner is the birth surname of former German chancellor Angela Merkel, reflecting her family name before marriage.
-
C.
Schwarzschild black hole
A Schwarzschild black hole is the simplest theoretical black hole solution in general relativity, describing a static, spherically symmetric, non-rotating, uncharged mass with an event horizon defined by the Schwarzschild radius.
-
D.
black hole no-hair theorem
The black hole no-hair theorem is a principle in general relativity stating that stationary black holes are completely characterized by only a few macroscopic parameters—mass, electric charge, and angular momentum—regardless of the details of the matter that formed them.
-
E.
Bekenstein–Hawking entropy
Bekenstein–Hawking entropy is the thermodynamic entropy associated with a black hole, proportional to the area of its event horizon and fundamental in linking gravity, quantum theory, and thermodynamics.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
astrophysical instability
ⓘ
gravitational-radiation-driven instability ⓘ rotational instability in stars ⓘ |
| affects |
neutron stars
ⓘ
rotating stars ⓘ |
| alsoKnownAs | CFS instability ⓘ |
| appliesTo |
f-modes
ⓘ
g-modes ⓘ non-axisymmetric modes ⓘ r-modes ⓘ |
| causes |
growth of non-axisymmetric oscillation modes
ⓘ
secular instability in rotating stars ⓘ |
| consequence |
emission of continuous gravitational waves
ⓘ
spin-down of rapidly rotating neutron stars ⓘ |
| criterion | mode pattern speed changes sign between rotating and inertial frames ⓘ |
| dependsOn |
equation of state of dense matter
ⓘ
gravitational radiation reaction ⓘ stellar rotation rate ⓘ |
| describedIn | general relativistic perturbation theory ⓘ |
| drivenBy | emission of gravitational waves ⓘ |
| energySource | rotational kinetic energy of the star ⓘ |
| field |
general relativity
ⓘ
gravitational-wave astrophysics ⓘ relativistic astrophysics ⓘ |
| mathematicalDescription | eigenmode analysis of rotating relativistic stars ⓘ |
| mechanism |
gravitational radiation removes angular momentum from the star
ⓘ
gravitational-wave backreaction amplifies certain oscillation modes ⓘ retrograde modes in the rotating frame can appear prograde in the inertial frame ⓘ |
| namedAfter |
Bernard F. Schutz
ⓘ
John L. Friedman ⓘ Subrahmanyan Chandrasekhar ⓘ |
| observationalSignature | narrow-band continuous gravitational-wave emission ⓘ |
| originatesFrom |
work of John L. Friedman and Bernard F. Schutz on gravitational radiation instabilities
ⓘ
work of Subrahmanyan Chandrasekhar on rotating stars ⓘ |
| relatedTo |
Chandrasekhar limit
ⓘ
non-radial stellar oscillations ⓘ r-mode instability ⓘ |
| relevantFor |
gravitational-wave detection by ground-based interferometers
ⓘ
young rapidly rotating neutron stars ⓘ |
| stabilizedBy |
bulk viscosity
ⓘ
shear viscosity ⓘ viscosity in stellar matter ⓘ |
| studiedIn |
numerical relativity
ⓘ
theory of compact objects ⓘ |
| timescale | secular timescale ⓘ |
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.
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.
Subject: Chandrasekhar–Friedman–Schutz instability Description of subject: The Chandrasekhar–Friedman–Schutz instability is a gravitational-radiation-driven instability in rotating stars that can cause certain oscillation modes to grow by emitting gravitational waves.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.