Dissipation of Magnetohydrodynamic Waves on Energetic Particles: Impact on Interstellar Turbulence and Cosmic Ray Transport

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dc.creatorPtuskin, V. S.
dc.creatorMoskalenko, I. V.
dc.creatorJones, F. C.
dc.creatorStrong, A. W.
dc.creatorZirakashvili, V. N.
dc.date2005-10-11
dc.date2006-01-21
dc.date.accessioned2026-07-07T11:24:51Z
dc.date.available2026-07-07T11:24:51Z
dc.descriptionThe physical processes involved in diffusion of Galactic cosmic rays in the interstellar medium are addressed. We study the possibility that the nonlinear MHD cascade sets the power-law spectrum of turbulence which scatters charged energetic particles. We find that the dissipation of waves due to the resonant interaction with cosmic ray particles may terminate the Kraichnan-type cascade below wavelengths 10^13 cm. The effect of this wave dissipation has been incorporated in the GALPROP numerical propagation code in order to asses the impact on measurable astrophysical data. The energy-dependence of the cosmic-ray diffusion coefficient found in the resulting self-consistent model may explain the peaks in the secondary to primary nuclei ratios observed at about 1 GeV/nucleon.
dc.description15 pages, 20 figures, 1 table, emulateapj.cls; To be published in ApJ 10 May 2006, v.642
dc.identifierhttps://arxiv.org/abs/astro-ph/0510335
dc.identifierhttp://arxiv.org/abs/astro-ph/0510335
dc.identifierAstrophys.J.642:902-916,2006
dc.identifierdoi:10.1086/501117
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/195329
dc.subjectAstrophysics
dc.titleDissipation of Magnetohydrodynamic Waves on Energetic Particles: Impact on Interstellar Turbulence and Cosmic Ray Transport
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