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dc.contributor.authorVech, Daniel
dc.contributor.authorKlein, Kristopher G.
dc.contributor.authorKasper, Justin C.
dc.date.accessioned2018-12-05T20:11:09Z
dc.date.available2018-12-05T20:11:09Z
dc.date.issued2018-08-10
dc.identifier.citationDaniel Vech et al 2018 ApJL 863 L4en_US
dc.identifier.issn2041-8213
dc.identifier.doi10.3847/2041-8213/aad329
dc.identifier.urihttp://hdl.handle.net/10150/631102
dc.description.abstractIn this Letter, we study the connection between the large-scale dynamics of the turbulence cascade and particle heating on kinetic scales. We find that the inertial range turbulence amplitude (delta B-i; measured in the range of 0.01-0.1 Hz) is a simple and effective proxy to identify the onset of significant ion heating, and when it is combined with beta(parallel to P), it characterizes the energy partitioning between protons and electrons (T-p/T-e); proton temperature anisotropy (T-perpendicular to/T-parallel to); and scalar proton temperature (Tp) in a way that is consistent with previous predictions. For a fixed delta B-i, the ratio of linear to nonlinear timescales is strongly correlated with the scalar proton temperature in agreement with Matthaeus et al., though for solar wind intervals with delta(parallel to p)> 1, some discrepancies are found. For a fixed beta(parallel to p), an increase of the turbulence amplitude leads to higher T-p/T-e ratios, which is consistent with the models of Chandran et al. and Wu et al. We discuss the implications of these findings for our understanding of plasma turbulence.en_US
dc.language.isoenen_US
dc.publisherIOP PUBLISHING LTDen_US
dc.relation.urlhttp://stacks.iop.org/2041-8205/863/i=1/a=L4?key=crossref.2c15ffca2245f0ffbd2e8bc5748a15a2en_US
dc.rights© 2018. The American Astronomical Society.en_US
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectmagnetohydrodynamics (MHD)en_US
dc.subjectplasmasen_US
dc.subjectsolar winden_US
dc.subjectturbulenceen_US
dc.subjectwavesen_US
dc.titleLarge-scale Control of Kinetic Dissipation in the Solar Winden_US
dc.typeArticleen_US
dc.contributor.departmentUniv Arizona, Lunar & Planetary Laben_US
dc.identifier.journalASTROPHYSICAL JOURNAL LETTERSen_US
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en_US
dc.eprint.versionFinal published versionen_US
dc.source.journaltitleThe Astrophysical Journal
dc.source.volume863
dc.source.issue1
dc.source.beginpageL4
refterms.dateFOA2018-12-05T20:11:09Z


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