Oxygen acoustic solitary waves in a magnetized plasma

Journal Article · Wed Feb 01 04:00:00 EST 1989 · Journal of Geophysical Research; (USA)

DOI:https://doi.org/10.1029/JA094iA02p01339· OSTI ID:5832782

Qian, S; Lotko, W; Hudson, M K ^[1]

---

1. Dartmouth College, Hanover, NH (USA)

Ion-acoustic solitary waves in a magnetized plasma containing an arbitrary mixture of H{sup +} and O{sup +} ions are studied. A nonlinear wave equation has been derived from the Poisson-Vlasov equations, including a uniform magnetic field and dissipation due to reflected electrons. When dissipation is ignored, the equation has soliton solutions associated with both oxygen and hydrogen acoustic modes, which can be either rarefactive or compressive depending on the ion concentrations and the electron/ion temperature ratio and, more weakly, on the bulk drifts of the species. If electron reflection is included, the solitary wave can be intensified. Under somewhat restrictive conditions the oxygen solitary wave is rarefactive and propagates with a velocity comparable to that observed by the Viking satellite. The three-dimensional solitons obey a relation of scales parallel to the magnetic field and in the transverse direction. Computer simulations of one-dimensional versions of the nonlinear wave equation are represented.

• OSTI ID: 5832782
• Journal Information: Journal of Geophysical Research; (USA), Journal Name: Journal of Geophysical Research; (USA) Vol. 94:A2; ISSN 0148-0227; ISSN JGREA
• Country of Publication: United States
• Language: English

Related Subjects

640201* -- Atmospheric Physics-- Auroral
Ionospheric
& Magetospheric Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AURORAL ZONES
CHARGED PARTICLES
COMPUTERIZED SIMULATION
DIFFERENTIAL EQUATIONS
ELECTRIC FIELDS
ENERGY LOSSES
EQUATIONS
HYDROGEN IONS
ION ACOUSTIC WAVES
ION DENSITY
ION WAVES
IONS
LOSSES
NONLINEAR PROBLEMS
OXYGEN IONS
PARTIAL DIFFERENTIAL EQUATIONS
PLASMA
PLASMA WAVES
POISSON EQUATION
QUASI PARTICLES
SIMULATION
SOLITONS
WAVE EQUATIONS
WAVE PROPAGATION