Observational Evidence of Pitch Angle Isotropization by IMF Waves

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dc.creatorSaul, L.
dc.creatorMoebius, E.
dc.creatorSmith, C. W.
dc.creatorBochsler, P.
dc.creatorGruenwaldt, H.
dc.creatorKlecker, B.
dc.creatorIpavich, F.
dc.date2004-02-04
dc.date.accessioned2026-07-07T02:12:07Z
dc.date.available2026-07-07T02:12:07Z
dc.descriptionA 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 resolu-tion of 3 seconds are used to determine power spectrum char-acteristics of interplanetary magnetic turbulence. These spec-tral 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 Alfvenic fluctuations.
dc.description7 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/astro-ph/0402090
dc.identifierhttp://arxiv.org/abs/astro-ph/0402090
dc.identifierGeophys.Res.Lett. 31 (2004) L05811
dc.identifierdoi:10.1029/2003GL019014.
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/7345
dc.subjectAstrophysics
dc.titleObservational Evidence of Pitch Angle Isotropization by IMF Waves
dc.typetext

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