Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983ap%26ss..95...47d&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 95, no. 1, Sept. 1983, p. 47-63.
Astronomy and Astrophysics
Astrophysics
6
Atmospheric Electricity, Electrohydrodynamics, Magnetohydrodynamic Stability, Magnetospheric Instability, Plasma Currents, Plasma Layers, Electrostatics, Magnetospheric Electron Density, Magnetospheric Ion Density, Plasma Density, Polarization (Charge Separation), Vlasov Equations
Scientific paper
After examining some of the background work relevant to double layers, the role constant current driven systems might play in the double layer formation is examined from two perspectives. First, a fluids analysis is considered via the method of characteristics. A density perturbation growth is predicted. Two model deficiencies, zero electron mass and lack of particle kinematics, suggest an improvement in the model via the Vlasov equation. This second model usig the Vlasov equation still maintains a non-quasineutral posture. In addition to predicting the expected two-stream instability, the model also predicts a double layer-type electric field.
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