Parker solar wind model
E941945
The Parker solar wind model is a foundational theoretical framework that explains how the Sun’s hot corona expands outward as a continuous, supersonic stream of charged particles that shapes the heliosphere.
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
astrophysical model
ⓘ
solar physics model ⓘ space plasma physics model ⓘ theoretical model ⓘ |
| appliesTo | stellar winds of other stars ⓘ |
| assumes |
collisionless plasma at large distances
ⓘ
radial symmetry ⓘ steady-state solar wind ⓘ |
| basedOn |
hydrodynamic equations
ⓘ
isothermal corona approximation ⓘ spherically symmetric outflow assumption ⓘ |
| coreConcept |
pressure-driven coronal expansion
ⓘ
supersonic stellar wind ⓘ |
| describes |
continuous outflow of plasma from the Sun
ⓘ
expansion of the solar corona ⓘ formation of the heliosphere ⓘ radial outflow of charged particles from the Sun ⓘ solar wind ⓘ supersonic flow of the solar wind ⓘ |
| developedBy | Eugene N. Parker NERFINISHED ⓘ |
| explains |
acceleration of the solar wind
ⓘ
existence of a critical point in solar wind flow ⓘ quasi-steady nature of the solar wind ⓘ transition from subsonic to supersonic solar wind ⓘ |
| field |
astrophysics
ⓘ
heliophysics ⓘ space plasma physics ⓘ |
| influenced |
design of interplanetary missions
ⓘ
modern heliospheric physics ⓘ space weather research ⓘ |
| involves |
plasma pressure gradient
ⓘ
radial distance from the Sun ⓘ solar corona temperature ⓘ solar gravitational field ⓘ |
| namedAfter | Eugene N. Parker NERFINISHED ⓘ |
| predicts |
existence of a critical point in the solar wind solution
ⓘ
finite mass loss rate from the Sun ⓘ pressure-driven outflow of coronal plasma ⓘ solar wind becomes supersonic beyond a critical radius ⓘ solar wind speed increases with distance from the Sun near the corona ⓘ |
| publicationYear | 1958 ⓘ |
| publishedIn | Astrophysical Journal NERFINISHED ⓘ |
| relatedTo | Parker spiral model of the interplanetary magnetic field ⓘ |
| testedBy |
ACE spacecraft observations
ⓘ
Helios spacecraft observations ⓘ Mariner 2 observations ⓘ Parker Solar Probe observations ⓘ Ulysses spacecraft observations ⓘ Wind spacecraft observations ⓘ in-situ spacecraft measurements of the solar wind ⓘ |
Referenced by (1)
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