Observations of suprathermal ions in association with SLAMS

Journal Article · Fri Jan 22 04:00:00 EST 1993 · Geophysical Research Letters (American Geophysical Union); (United States)

DOI:https://doi.org/10.1029/93GL00067· OSTI ID:6700913

Giacalone, J; Schwartz, S J; Burgess, D ^[1]

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1. Queen Mary and Westfield College, London (United Kingdom)

The authors present observations of 1.4-20 keV ions in association with short large amplitude magnetic structures (SLAMS) using high time resolution AMPTE/UKS data near the quasi-parallel Earth's bow shock. The observations show a strong temporal gradient in the suprathermal ion pressure as the convecting SLAMS passes. They discuss these observations in the context of recent simulation studies which predict that SLAMS are the result of the steepening of a ULF wave as it passes through an energetic particle pressure gradient and present a simple picture illustrating the relationship between this spatial gradient and the observed temporal one. 16 refs., 5 figs.

• OSTI ID: 6700913
• Journal Information: Geophysical Research Letters (American Geophysical Union); (United States), Journal Name: Geophysical Research Letters (American Geophysical Union); (United States) Vol. 20:2; ISSN GPRLAJ; ISSN 0094-8276
• Country of Publication: United States
• Language: English

Related Subjects

661320* -- Auroral
Ionospheric
& Magnetospheric Phenomena-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CHARGED PARTICLES
DENSITY
EARTH PLANET
ELECTROMAGNETIC RADIATION
ENERGY
ENERGY RANGE
IONS
KEV RANGE
KEV RANGE 01-10
KEV RANGE 10-100
PHYSICAL PROPERTIES
PLANETS
PLASMA WAVES
PRESSURE GRADIENTS
RADIATIONS
RESOLUTION
SHOCK WAVES
SIMULATION
TIME RESOLUTION
TIMING PROPERTIES
ULTRALOW FREQUENCY RADIATION
WAVE PROPAGATION