neutron star hypothesis
E255919
The neutron star hypothesis is Fritz Zwicky’s pioneering proposal that supernova explosions leave behind extremely dense stellar remnants composed primarily of neutrons, now known as neutron stars.
All labels observed (1)
| Label | Occurrences |
|---|---|
| neutron star hypothesis canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2329364 — 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: neutron star hypothesis Context triple: [Fritz Zwicky, notableWork, neutron star hypothesis]
-
A.
neutrino hypothesis
The neutrino hypothesis is Wolfgang Pauli’s 1930 proposal of a neutral, nearly massless particle to explain missing energy and momentum in beta decay, laying the groundwork for the discovery of the neutrino.
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B.
Oppenheimer–Volkoff limit
The Oppenheimer–Volkoff limit is the theoretical maximum mass a neutron star can have before collapsing into a black hole under its own gravity.
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C.
Chandrasekhar limit
The Chandrasekhar limit is the maximum mass a white dwarf star can have before collapsing under its own gravity, playing a crucial role in determining its ultimate fate as a neutron star or black hole.
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D.
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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E.
Chandrasekhar–Friedman–Schutz instability
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.
- 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: neutron star hypothesis Target entity description: The neutron star hypothesis is Fritz Zwicky’s pioneering proposal that supernova explosions leave behind extremely dense stellar remnants composed primarily of neutrons, now known as neutron stars.
-
A.
neutrino hypothesis
The neutrino hypothesis is Wolfgang Pauli’s 1930 proposal of a neutral, nearly massless particle to explain missing energy and momentum in beta decay, laying the groundwork for the discovery of the neutrino.
-
B.
Oppenheimer–Volkoff limit
The Oppenheimer–Volkoff limit is the theoretical maximum mass a neutron star can have before collapsing into a black hole under its own gravity.
-
C.
Chandrasekhar limit
The Chandrasekhar limit is the maximum mass a white dwarf star can have before collapsing under its own gravity, playing a crucial role in determining its ultimate fate as a neutron star or black hole.
-
D.
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.
-
E.
Chandrasekhar–Friedman–Schutz instability
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.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
astrophysical hypothesis
ⓘ
scientific hypothesis ⓘ |
| assumes |
electrons and protons combine to form neutrons under extreme pressure
ⓘ
stellar core can collapse to nuclear densities ⓘ |
| coreIdea | supernova energy partly comes from gravitational binding energy released during collapse to a neutron star ⓘ |
| describes | remnant of certain massive stars after supernova ⓘ |
| describesRemnant |
compact object with radius of about 10 kilometers
ⓘ
object with density comparable to nuclear density ⓘ object with mass comparable to the Sun ⓘ |
| field |
astrophysics
ⓘ
stellar astrophysics ⓘ supernova theory ⓘ |
| historicalSignificance |
early link between supernovae and compact stellar remnants
ⓘ
first theoretical proposal of neutron stars ⓘ |
| influenced |
models of core-collapse supernovae
ⓘ
modern theory of neutron stars ⓘ research on dense nuclear matter ⓘ |
| involvesConcept |
core-collapse of massive stars
ⓘ
equation of state of dense nuclear matter ⓘ gravitational binding energy ⓘ neutron degeneracy pressure ⓘ |
| mainClaim | supernova explosions leave behind extremely dense stellar remnants composed primarily of neutrons ⓘ |
| motivatedBy |
need to explain enormous energy output of supernovae
ⓘ
observations of supernovae in the Andromeda Galaxy ⓘ |
| predicts | existence of neutron stars ⓘ |
| proposedBy |
Fritz Zwicky
ⓘ
Walter Baade ⓘ |
| publishedBy | Fritz Zwicky and Walter Baade ⓘ |
| publishedIn | Proceedings of the National Academy of Sciences ⓘ |
| relatedTo |
Chandrasekhar limit
ⓘ
Oppenheimer–Volkoff limit ⓘ black hole formation theories ⓘ pulsar model ⓘ |
| relatesTo |
compact objects
ⓘ
core-collapse supernovae ⓘ degenerate matter ⓘ gravitational collapse ⓘ nuclear density matter ⓘ stellar evolution ⓘ supernova explosion mechanism ⓘ |
| status | largely confirmed ⓘ |
| supportedBy |
X-ray observations of compact objects in binary systems
ⓘ
discovery of pulsars ⓘ measurements of neutron star masses and radii ⓘ radio observations of pulsars as rotating neutron stars ⓘ |
| timeProposed |
1933
ⓘ
early 1930s ⓘ |
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: neutron star hypothesis Description of subject: The neutron star hypothesis is Fritz Zwicky’s pioneering proposal that supernova explosions leave behind extremely dense stellar remnants composed primarily of neutrons, now known as neutron stars.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.