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http://hdl.handle.net/2248/4109
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Hasan, S. S | - |
dc.contributor.author | Venkatakrishnan, P | - |
dc.date.accessioned | 2008-12-18T14:12:44Z | - |
dc.date.available | 2008-12-18T14:12:44Z | - |
dc.date.issued | 1981-09 | - |
dc.identifier.citation | Solar Physics, Vol. 73, No. 1, pp. 45 - 57 | en |
dc.identifier.issn | 0038-0938 | - |
dc.identifier.uri | http://hdl.handle.net/2248/4109 | - |
dc.description.abstract | A time dependent model for the flow of gas in a spicule is studied. In this model, the flow occurs in a magnetic flux sheath. Starting from hydrostatic equilibrium, the flux sheath is allowed to collapse normal to itself. The collapse induces a flow of gas along the magnetic field and this flow is identified as a spicule. A variety of sheath geometries and velocity patterns for the normal flow have been studied. It is observed that a large curvature in the field geometry and a large initial value for the normal flow are necessary to achieve spicule-like velocities. The duration for which a large velocity of normal flow is required is much shorter than the average lifetime of a spicule. It is proposed that the initial rapid collapse occurs during an 'impulsive spicule' phase and it is the subsequent gradual relaxation of the flow which is observed as a spicule. | en |
dc.language.iso | en | en |
dc.publisher | Kluwer Academic Publishers | en |
dc.relation.uri | http://adsabs.harvard.edu/abs/1981SoPh...73...45H | en |
dc.relation.uri | http://dx.doi.org/10.1007/BF00153143 | en |
dc.subject | Magnetohydrodynamic Flow | en |
dc.subject | Magnetoplasmadynamics | en |
dc.subject | Solar Magnetic Field | en |
dc.subject | Solar Prominences | en |
dc.subject | Spicules | en |
dc.subject | Stellar Models | en |
dc.subject | Compressible Flow | en |
dc.subject | Flow Velocity | en |
dc.subject | Magnetic Field Configurations | en |
dc.subject | Magnetic Flux | en |
dc.subject | Plasma Sheaths | en |
dc.subject | Pressure Distribution | en |
dc.subject | Time Dependence | en |
dc.subject | Two Dimensional Flow | en |
dc.subject | Velocity Distribution | en |
dc.title | A time dependent model for spicule flow | en |
dc.type | Article | en |
Appears in Collections: | IIAP Publications |
Files in This Item:
File | Description | Size | Format | |
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A time dependent model for spicule flow | 823.97 kB | Adobe PDF | ![]() View/Open |
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