| Autor: |
NITIN SHUKLA, P.K. SHUKLA, C.S. LIU, G.E. MORFILL |
| Předmět: |
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| Zdroj: |
Journal of Plasma Physics; Apr2007, Vol. 73 Issue 2, p141-144, 4p |
| Abstrakt: |
It is shown that purely growing magnetic fields in a two-component dusty plasma can e generated due to the equilibrium drift of positive and negative dust grains. For this purpose, a linear dispersion relation has been derived by using the hydrodynamic equations for the charged dust fluids, the Maxwell equation and Faraday' law. The dispersion relation admits a purely growing instability, the growth rate of which is proportional to the equilibrium streaming speeds of positive and negative dust grains. A possible physical explanation for the instability is offered. Applications of our investigation to magnetic fields in the thin Martian environments, interplanetary spaces and dense molecular clouds are mentioned. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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