Rubin–Ford effect
E290149
The Rubin–Ford effect is an observed large-scale motion of galaxies relative to the cosmic microwave background that provided early evidence for peculiar velocities and inhomogeneities in the universe’s expansion.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Rubin–Ford effect canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T2690786 — 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: Rubin–Ford effect Context triple: [Vera Rubin, knownFor, Rubin–Ford effect]
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A.
Ehrenstein
Ehrenstein is a locality or district that forms part of the municipality of Blaustein in the state of Baden-Württemberg, Germany.
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B.
Aitken’s Law
Aitken’s Law is a phonological rule in Scots and Scottish English that governs when vowels are pronounced long or short depending on their phonetic and morphological environment.
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C.
Loewenstein
Loewenstein is a surname of German origin associated with various notable individuals in fields such as science, politics, and the arts.
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D.
Farrer hypothesis
The Farrer hypothesis is a theory of New Testament source criticism that proposes the Gospel of Mark was written first, Matthew used Mark, and Luke used both Mark and Matthew, thereby dispensing with the need for a separate Q source.
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E.
Lusser's law
Lusser's law is a reliability engineering principle that states the overall reliability of a system is the product of the reliabilities of its individual components, highlighting how system reliability decreases as more components are added in series.
- 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: Rubin–Ford effect Target entity description: The Rubin–Ford effect is an observed large-scale motion of galaxies relative to the cosmic microwave background that provided early evidence for peculiar velocities and inhomogeneities in the universe’s expansion.
-
A.
Ehrenstein
Ehrenstein is a locality or district that forms part of the municipality of Blaustein in the state of Baden-Württemberg, Germany.
-
B.
Aitken’s Law
Aitken’s Law is a phonological rule in Scots and Scottish English that governs when vowels are pronounced long or short depending on their phonetic and morphological environment.
-
C.
Loewenstein
Loewenstein is a surname of German origin associated with various notable individuals in fields such as science, politics, and the arts.
-
D.
Farrer hypothesis
The Farrer hypothesis is a theory of New Testament source criticism that proposes the Gospel of Mark was written first, Matthew used Mark, and Luke used both Mark and Matthew, thereby dispensing with the need for a separate Q source.
-
E.
Lusser's law
Lusser's law is a reliability engineering principle that states the overall reliability of a system is the product of the reliabilities of its individual components, highlighting how system reliability decreases as more components are added in series.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical phenomenon
ⓘ
cosmological observation ⓘ |
| basedOn |
distance measurements of galaxies
ⓘ
radial velocities of galaxies ⓘ |
| concerns |
cosmic velocity field
ⓘ
large-scale structure of the universe ⓘ |
| cosmologicalContext |
FLRW cosmological models
ⓘ
surface form:
Friedmann–Lemaître–Robertson–Walker cosmology
|
| describes |
bulk flow of galaxies
ⓘ
large-scale motion of galaxies ⓘ |
| epochOfDiscovery | late 20th century ⓘ |
| evidenceFor |
departure from purely uniform Hubble flow
ⓘ
inhomogeneities in the universe’s expansion ⓘ peculiar velocities of galaxies ⓘ |
| field |
cosmology
ⓘ
extragalactic astronomy ⓘ |
| hasImplication |
existence of gravitational influences from large-scale structures
ⓘ
universe not perfectly isotropic on intermediate scales ⓘ |
| namedAfter |
Vera Rubin
ⓘ
W. Kent Ford Jr. ⓘ |
| observationalStatus | observed effect ⓘ |
| relatedTo |
Lemaître–Hubble law
ⓘ
surface form:
Hubble–Lemaître law
cosmic microwave background dipole ⓘ large-scale bulk flow ⓘ peculiar velocity ⓘ |
| relativeTo | cosmic microwave background ⓘ |
| scale | large-scale ⓘ |
| suggests |
anisotropy in galaxy motions
ⓘ
deviations from perfect cosmological homogeneity ⓘ |
| usedIn |
studies of bulk flows
ⓘ
studies of local group motion ⓘ tests of cosmological models ⓘ |
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: Rubin–Ford effect Description of subject: The Rubin–Ford effect is an observed large-scale motion of galaxies relative to the cosmic microwave background that provided early evidence for peculiar velocities and inhomogeneities in the universe’s expansion.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.