Variability of low-energy ion flux profiles on interplanetary shock fronts

doi:doi:10.1029/2006JA011832

Abstract

Cited By (8)

Abstract

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 111, A12107, 5 PP., 2006
doi:10.1029/2006JA011832

Variability of low-energy ion flux profiles on interplanetary shock fronts

M. Neugebauer

Lunar and Planetary Laboratory, University of Arizona, Tucson, Arizona, USA

J. Giacalone

Lunar and Planetary Laboratory, University of Arizona, Tucson, Arizona, USA

E. Chollet

Lunar and Planetary Laboratory, University of Arizona, Tucson, Arizona, USA

D. Lario

Johns Hopkins University Applied Physics Laboratory, Laurel, Maryland, USA

Time-intensity profiles of 20–126 keV ions across interplanetary shocks are studied using data from ACE and Wind to determine the dependence of the profiles on spacecraft separation. Each pair of time-intensity profiles is examined to determine whether or not the same features (flat, classic energetic storm particle (ESP) rise, spikes, step functions, or complex patterns) are seen at both spacecraft. The persistence of particle profile patterns has a scale length in the plane of the shock of ∼2.9 Mkm, but the scale length along the shock normal direction is not well determined.

Received 4 May 2006; accepted 24 October 2006; published 16 December 2006.

Citation: Neugebauer, M., J. Giacalone, E. Chollet, and D. Lario (2006), Variability of low-energy ion flux profiles on interplanetary shock fronts, J. Geophys. Res., 111, A12107, doi:10.1029/2006JA011832.

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