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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/4019
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dc.contributor.authorHiraki, Y.-
dc.contributor.authorKrishan, Vinod-
dc.contributor.authorMasuda, S.-
dc.date.accessioned2011-04-08T07:43:56Z-
dc.date.available2011-04-08T07:43:56Z-
dc.date.issued2010-09-10-
dc.identifier.citationAstrophysical Journal, 2010, Vol. 720, p1311en
dc.identifier.issn1538-4357 (Online)-
dc.identifier.issn0004-637X.-
dc.identifier.urihttp://hdl.handle.net/2289/4019-
dc.descriptionRestricted Access.en
dc.description.abstractThe lower solar atmosphere consists of partially ionized turbulent plasmas harboring velocity field, magnetic field, and current density fluctuations. The correlations among these small-scale fluctuations give rise to large-scale flows and magnetic fields which decisively affect all transport processes. The three-fluid system consisting of electrons, ions, and neutral particles supports nonideal effects such as the Hall effect and ambipolar diffusion. Here, we study magnetic transport by the laminar- and turbulent-scale ambipolar diffusion processes using a simple model of the magnetic induction equation. Based on a linear analysis of the induction equation, we perform a one-dimensional numerical simulation to study the laminar ambipolar effect on medium-scale magnetic field structures. The nonlinearity of the laminar ambipolar diffusion creates magnetic structures with sharp gradients in the scale of hundreds of kilometers. We expect that these can be amenable to processes such as magnetic reconnection and energy release therefrom for heating and flaring of the solar plasma. Analyzing the characteristic timescales of these processes, we find that the turbulent diffusion timescale is smaller by several orders of magnitude than the laminar diffusion timescale. The effect of the modeled turbulent ambipolar diffusion on the obtained field structures is briefly discusseden
dc.language.isoenen
dc.publisherIOP Publishing Ltd for the American Astronomical Societyen
dc.relation.urihttp://adsabs.harvard.edu/abs/2010ApJ...720.1311Hen
dc.relation.urihttp://dx.doi.org/10.1088/0004-637X/720/2/1311en
dc.rights2010 IOP Publishing Limiteden
dc.subjectmagnetohydrodynamics MHDen
dc.subjectSun: chromosphereen
dc.subjectSun: dynamoen
dc.titleMagnetic transport on the solar atmosphere by laminar and turbulent ambipolar diffusionen
dc.typeArticleen
Appears in Collections:Research Papers (A&A)

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