EarthRef.org Reference Database (ERR) -- Saul et al. 2004

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Saul et al. 2004

Saul, L., Möbius, E., Smith, C.W., Bochsler, P., Grünwaldt, H., Klecker, B. and Ipavich, F. (2004). Observational evidence of pitch angle isotropization by IMF waves. Geophysical Research Letters 31: doi: 10.1029/2003GL019014. issn: 0094-8276.

A statistical analysis of interstellar He+ pickup ion measurements from SOHO/CTOF combined with magnetic field data from WIND/MFI enable quantitative study of wave-particle interactions in the inner heliosphere for the first time. Magnetic field vector measurements with a time resolution of 3 seconds are used to determine power spectrum characteristics of interplanetary magnetic turbulence. These spectral characteristics are then compared in superposed epoch and correlation analyses with He+ fluxes and spectra. The observed pickup ion velocity distributions can be explained consistently as a consequence of pitch angle scattering of the interstellar pickup ions by Alfv¿nic fluctuations.

BACKGROUND DATA FILES

	Abstract

Keywords
Interplanetary Physics, Pickup ions, Space Plasma Physics, Transport processes, Space Plasma Physics, Wave/particle interactions

Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/

Publisher
American Geophysical Union
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