Nonlinear evolution of Alfvénic wave packets

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dc.contributor.authorButi, B.
dc.contributor.authorJayanti, V.
dc.contributor.authorViñas, A. F.
dc.contributor.authorGhosh, S.
dc.contributor.authorGoldstein, Melvyn
dc.contributor.authorRoberts, D. A.
dc.contributor.authorLakhina, G. S.
dc.contributor.authorTsurutani, B. T.
dc.date.accessioned2023-11-09T20:50:09Z
dc.date.available2023-11-09T20:50:09Z
dc.date.issued1998-07-01
dc.description.abstractAlfvén waves are a ubiquitous feature of the solar wind. One approach to studying the evolution of such waves has been to study exact solutions to approximate evolution equations. Here we compare soliton solutions of the Derivative Nonlinear Schrödinger evolution equation (DNLS) to solutions of the compressible MHD equations. We find that the soliton solutions of the DNLS equation are not stable solutions of Hall-MHD—they evolve and dissipate with time. Although such solitons may serve as approximate initial conditions to the Hall-MHD equations, they are not stationary solutions. This may account for the absence of soliton-like wave forms in the free-flowing solar wind.en_US
dc.description.sponsorshipThe work of BB, GSL, and BTT was conducted at the NASA/Jet Propulsion Laboratory, California Institute of Technology under contract to NASA. The work at NASA/Goddard Space Flight Center was sup- ported by a Space Physics Theory Program grant.en_US
dc.description.urihttps://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/98GL01688en_US
dc.format.extent4 pagesen_US
dc.genrejournal articlesen_US
dc.identifierdoi:10.13016/m2lbso-dkb6
dc.identifier.citationButi, B., V. Jayanti, A. F. Viñas, S. Ghosh, M. L. Goldstein, D. A. Roberts, G. S. Lakhina, and B. T. Tsurutani. “Nonlinear Evolution of Alfvénic Wave Packets.” Geophysical Research Letters 25, no. 13 (1998): 2377–80. https://doi.org/10.1029/98GL01688.en_US
dc.identifier.urihttps://doi.org/10.1029/98GL01688
dc.identifier.urihttp://hdl.handle.net/11603/30643
dc.language.isoen_USen_US
dc.publisherAGUen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Goddard Planetary Heliophysics Institute (GPHI)
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.en_US
dc.rightsPublic Domain Mark 1.0*
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/*
dc.titleNonlinear evolution of Alfvénic wave packetsen_US
dc.typeTexten_US
dcterms.creatorhttps://orcid.org/0000-0002-5317-988Xen_US

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