Parker spiral model
E278346
The Parker spiral model is a theoretical description of the Sun’s magnetic field being wound into a spiral shape throughout the heliosphere by the combination of solar rotation and the outward-flowing solar wind.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Parker spiral | 1 |
| Parker spiral model canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2559187 — 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 Context triple: [Eugene N. Parker, notableWork, Parker spiral model]
-
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.
Scutum
Scutum is a small, faint constellation in the southern sky, known for its rich Milky Way star fields and deep-sky objects.
-
C.
Gould Belt
The Gould Belt is a nearby, partial ring of young stars, gas, and star-forming regions tilted to the Milky Way’s plane and encompassing many of the bright constellations visible from Earth.
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D.
Tychonic system
The Tychonic system is a historical hybrid model of the cosmos in which Earth is stationary at the center while the Sun orbits Earth and the other planets orbit the Sun, proposed as a compromise between geocentric and heliocentric theories.
-
E.
Copernican system
The Copernican system is the heliocentric model of the cosmos that placed the Sun, rather than the Earth, at the center of planetary motion, fundamentally transforming astronomy and science.
- 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 Target entity description: The Parker spiral model is a theoretical description of the Sun’s magnetic field being wound into a spiral shape throughout the heliosphere by the combination of solar rotation and the outward-flowing solar wind.
-
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.
Scutum
Scutum is a small, faint constellation in the southern sky, known for its rich Milky Way star fields and deep-sky objects.
-
C.
Gould Belt
The Gould Belt is a nearby, partial ring of young stars, gas, and star-forming regions tilted to the Milky Way’s plane and encompassing many of the bright constellations visible from Earth.
-
D.
Tychonic system
The Tychonic system is a historical hybrid model of the cosmos in which Earth is stationary at the center while the Sun orbits Earth and the other planets orbit the Sun, proposed as a compromise between geocentric and heliocentric theories.
-
E.
Copernican system
The Copernican system is the heliocentric model of the cosmos that placed the Sun, rather than the Earth, at the center of planetary motion, fundamentally transforming astronomy and science.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
heliospheric magnetic field model
ⓘ
solar physics concept ⓘ theoretical model ⓘ |
| alsoKnownAs |
Parker spiral model
ⓘ
surface form:
Parker spiral
|
| appliesTo |
heliosphere
ⓘ
solar wind ⓘ |
| approximationOf | large-scale heliospheric magnetic field ⓘ |
| assumes |
frozen-in magnetic field in the solar wind plasma
ⓘ
steady, spherically symmetric solar wind ⓘ |
| basedOn |
radial outflow of the solar wind
ⓘ
solar rotation ⓘ |
| describes |
large-scale configuration of the Sun’s magnetic field in the heliosphere
ⓘ
structure of the interplanetary magnetic field ⓘ |
| developedBy | Eugene N. Parker ⓘ |
| domain |
astrophysics
ⓘ
space plasma physics ⓘ |
| explains |
orientation of the heliospheric magnetic field at 1 AU
ⓘ
sector structure of the interplanetary magnetic field near Earth ⓘ |
| fieldComponent |
azimuthal magnetic field component
ⓘ
radial magnetic field component ⓘ |
| fieldLineEquation | r = (V_sw / Ω_sun) · (φ − φ_0) ⓘ |
| geometricType |
Archimedes' spiral
ⓘ
surface form:
Archimedean spiral
|
| historicalContext | introduced in the late 1950s ⓘ |
| implies |
magnetic field lines are carried outward by the solar wind
ⓘ
magnetic field lines are wound into a spiral by solar rotation ⓘ |
| includesParameter |
heliocentric distance
ⓘ
solar rotation rate ⓘ solar wind speed ⓘ |
| influenced | design and interpretation of heliophysics missions ⓘ |
| namedAfter | Eugene N. Parker ⓘ |
| neglects |
small-scale magnetic turbulence
ⓘ
time-dependent solar wind structures ⓘ |
| predicts |
Archimedean spiral geometry of field lines
ⓘ
angle between magnetic field and radial direction increases with distance from the Sun ⓘ azimuthal component of the heliospheric magnetic field ⓘ radial decrease of magnetic field strength with heliocentric distance ⓘ spiral shape of the interplanetary magnetic field lines ⓘ |
| relatedTo |
interplanetary magnetic field
ⓘ
magnetohydrodynamics ⓘ solar wind theory ⓘ |
| relevantTo |
interplanetary space
ⓘ
planetary magnetospheric interaction with the solar wind ⓘ solar-terrestrial relations ⓘ |
| testedBy |
in-situ magnetic field measurements by spacecraft
ⓘ
spacecraft observations at different heliocentric distances ⓘ |
| usedIn |
cosmic ray transport studies
ⓘ
interpretation of in-situ spacecraft magnetic field measurements ⓘ space weather modeling ⓘ |
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 Description of subject: The Parker spiral model is a theoretical description of the Sun’s magnetic field being wound into a spiral shape throughout the heliosphere by the combination of solar rotation and the outward-flowing solar wind.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Parker spiral