Parker spiral model of the interplanetary magnetic field
E278344
The Parker spiral model of the interplanetary magnetic field describes how the Sun’s rotating, magnetized solar wind stretches the solar magnetic field into an Archimedean spiral shape throughout the heliosphere.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Parker spiral model of the interplanetary magnetic field canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2559160 — 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: Parker spiral model of the interplanetary magnetic field Context triple: [Eugene N. Parker, knownFor, Parker spiral model of the interplanetary magnetic field]
-
A.
The Currents of Space
The Currents of Space is a science fiction novel by Isaac Asimov set in his Galactic Empire universe, exploring political intrigue, planetary exploitation, and social stratification on a distant world.
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B.
NASA Heliophysics System Observatory missions
NASA Heliophysics System Observatory missions are a coordinated fleet of spacecraft and instruments designed to study the Sun, the heliosphere, and their interactions with Earth and the solar system.
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C.
Diffuse Matter in Space
Diffuse Matter in Space is a seminal astrophysics book by Lyman Spitzer Jr. that systematically explores the physical properties and behavior of the interstellar medium.
-
D.
The Motion of Stars
The Motion of Stars is a 1910 silent short film directed by D.W. Griffith that explores astronomical themes through early cinematic techniques.
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E.
Gauss–Matuyama geomagnetic reversal
The Gauss–Matuyama geomagnetic reversal was a major event in Earth's history when the planet's magnetic field flipped polarity around 2.6 million years ago, marking a key boundary used in geological time scales.
- 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: Parker spiral model of the interplanetary magnetic field Target entity description: The Parker spiral model of the interplanetary magnetic field describes how the Sun’s rotating, magnetized solar wind stretches the solar magnetic field into an Archimedean spiral shape throughout the heliosphere.
-
A.
The Currents of Space
The Currents of Space is a science fiction novel by Isaac Asimov set in his Galactic Empire universe, exploring political intrigue, planetary exploitation, and social stratification on a distant world.
-
B.
NASA Heliophysics System Observatory missions
NASA Heliophysics System Observatory missions are a coordinated fleet of spacecraft and instruments designed to study the Sun, the heliosphere, and their interactions with Earth and the solar system.
-
C.
Diffuse Matter in Space
Diffuse Matter in Space is a seminal astrophysics book by Lyman Spitzer Jr. that systematically explores the physical properties and behavior of the interstellar medium.
-
D.
The Motion of Stars
The Motion of Stars is a 1910 silent short film directed by D.W. Griffith that explores astronomical themes through early cinematic techniques.
-
E.
Gauss–Matuyama geomagnetic reversal
The Gauss–Matuyama geomagnetic reversal was a major event in Earth's history when the planet's magnetic field flipped polarity around 2.6 million years ago, marking a key boundary used in geological time scales.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
heliospheric magnetic field model
ⓘ
physical model ⓘ solar wind model ⓘ theoretical model ⓘ |
| appliesTo |
heliosphere
ⓘ
solar wind ⓘ |
| assumes |
constant solar rotation rate
ⓘ
magnetic field lines are frozen into the solar wind plasma ⓘ radial solar wind velocity ⓘ spherically symmetric solar wind outflow ⓘ steady-state solar wind ⓘ |
| basedOn |
Sun’s rotation
ⓘ
frozen-in magnetic field approximation ⓘ ideal magnetohydrodynamics ⓘ radial outflow of the solar wind ⓘ |
| coordinateSystem | heliocentric inertial frame ⓘ |
| describes |
Archimedean spiral configuration of solar magnetic field lines
ⓘ
shape of the heliospheric magnetic field lines ⓘ structure of the interplanetary magnetic field ⓘ |
| formulatedBy | Eugene N. Parker ⓘ |
| hasKeyParameter |
heliocentric distance
ⓘ
solar rotation angular velocity ⓘ solar wind speed ⓘ |
| implies |
magnetic field lines are nearly radial close to the Sun
ⓘ
magnetic field lines become more azimuthal at larger heliocentric distances ⓘ |
| influences |
design of heliospheric magnetic field simulations
ⓘ
models of energetic particle transport in the heliosphere ⓘ |
| namedAfter | Eugene N. Parker ⓘ |
| neglects |
coronal mass ejections
ⓘ
small-scale magnetic turbulence ⓘ time-dependent solar wind variations ⓘ |
| predicts |
Archimedean spiral magnetic field lines in the ecliptic plane
ⓘ
angle between magnetic field and radial direction increases with distance from the Sun ⓘ azimuthal component of the interplanetary magnetic field ⓘ magnetic field lines lag behind radial direction due to solar rotation ⓘ radial decrease of magnetic field strength with heliocentric distance ⓘ sector structure of the interplanetary magnetic field ⓘ |
| publicationYear | 1958 ⓘ |
| relatedTo |
Parker solar wind model
ⓘ
heliospheric current sheet ⓘ interplanetary magnetic field ⓘ space weather ⓘ |
| usedIn |
interpretation of in-situ spacecraft magnetic field measurements
ⓘ
modelling of cosmic ray propagation in the heliosphere ⓘ solar–terrestrial physics ⓘ space physics ⓘ |
| validIn | supersonic solar wind region ⓘ |
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: Parker spiral model of the interplanetary magnetic field Description of subject: The Parker spiral model of the interplanetary magnetic field describes how the Sun’s rotating, magnetized solar wind stretches the solar magnetic field into an Archimedean spiral shape throughout the heliosphere.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.