Lower-hybrid collapse, caviton turbulence, and charged particle energization in the topside auroral ionosphere and magnetosphere

Journal Article · Thu Jul 01 04:00:00 EDT 1993 · Physics of Fluids B; (United States)

DOI:https://doi.org/10.1063/1.860702· OSTI ID:5567498

Chang, T ^[1]

---

1. Center for Space Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

In 1981, Chang and Coppi [Geophys. Res. Lett. [bold 8], 1253 (1981)] suggested that lower-hybrid turbulence could be the prime candidate for the acceleration of ions and generation of ion conics'' in the high-latitude ionosphere and magnetosphere. Subsequently, Retterer, Chang, and Jasperse [J. Geophys. Res. [bold 91], 1609 (1986)] demonstrated that nonlinear wave interactions near the lower-hybrid frequency through modulational instability, such as the collapse of waves into soliton (caviton) turbulence could play a key role in the energization of both the ambient ions and electrons. Recent sounding rocket observations in the source region of the topside auroral ionosphere seem to confirm the details of such predictions [Kintner [ital et] [ital al]., Phys. Rev. Lett. [bold 68], 2448 (1992); Arnoldy [ital et] [ital al]., Geophys. Res. Lett. [bold 19], 413 (1992)]. In this paper, the scenario of this interesting micro/meso scale, nonlinear wave--wave and wave--particle interaction plasma process in the auroral ionosphere/magnetosphere is briefly reviewed.

• OSTI ID: 5567498
• Journal Information: Physics of Fluids B; (United States), Journal Name: Physics of Fluids B; (United States) Vol. 5:7; ISSN 0899-8221; ISSN PFBPEI
• Country of Publication: United States
• Language: English

Related Subjects

661320* -- Auroral
Ionospheric
& Magnetospheric Phenomena-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCELERATION
AURORAE
CHARGED PARTICLES
EARTH ATMOSPHERE
EARTH MAGNETOSPHERE
INSTABILITY
IONOSPHERE
IONS
PLANETARY IONOSPHERES
PLASMA INSTABILITY
PLASMA SHEET
TURBULENCE