Physics – Plasma Physics
Scientific paper
Jul 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978stin...7830023b&link_type=abstract
Unknown
Physics
Plasma Physics
Black Holes (Astronomy), Current Sheets, Interplanetary Magnetic Fields, Astronomical Models, Maxwell Equation, Plasma Physics, Plasma Pressure, Theories, Vlasov Equations
Scientific paper
Magnetic holes in the interplanetary medium are explained as stationary, non-propagating, equilibrium structures in which there are field-aligned enhancements of the plasma density and/or temperature. Magnetic anti-holes are considered to be associated with depressions in the plasma pressure. In this model, the observed changes in the magnetic field intensity and direction are due to diamagnetic currents that are carried by ions which drift in a sheath as the result of gradients in the magnetic field and in the plasma pressure within the sheath. The thickness of the sheaths considered is approximately a few ion Larmor radii. An electric field is normal to the magnetic field in the sheath. Solutions of Vlasov's equation and Maxwell's equations are presented which account for several types of magnetic holes, including null-sheets, that were observed.
Burlaga Leonard Francis
Lemaire Joseph F.
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