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A particle simulation of current sheet instabilities under finite guide field
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10.1063/1.2938732
/content/aip/journal/pop/15/7/10.1063/1.2938732
http://aip.metastore.ingenta.com/content/aip/journal/pop/15/7/10.1063/1.2938732

Figures

Image of FIG. 1.
FIG. 1.

Simulation results of case 1 (mode A). (a) Contours of the perturbed electromagnetic field , plasma density , , and in the 2D simulation plane. The dashed lines mark , and scales in the colorbars are amplified by a factor of . (b) Eigenfunctions of corresponding quantities, where the red (blue, black) line represents the real (imaginary, absolute value) part. The dashed lines mark and .

Image of FIG. 2.
FIG. 2.

Simulation results of case 1. (a) The relative powers of predominant components and , with , as a function of real frequency at different locations of , 0.5, 1, 1.5, 2, 2.5, and . The vertical dashed line marks the real frequency . (b) The power of with as a function of time at different locations at , 1, 1.5, and . The long-dashed line represents with . (c) Time series plot of as a function of at .

Image of FIG. 3.
FIG. 3.

Hodograms of magnetic field in plane in (a) case 1 at , (b) case 2 at , and (c) case 3 at . The arrows indicate the direction from upstream to downstream against . The field quantities are normalized to their maximum value in each case.

Image of FIG. 4.
FIG. 4.

Eigenfunctions of and with , 6.8, and 13.6 in mode A. The dashed lines mark and .

Image of FIG. 5.
FIG. 5.

Real frequency and growth rate of mode A (a) as a function of for guide field and 0.2 and =0.033, (b) as a function of electron , for and =6.8 and (c) as a function of for =6.8 and =0.033.

Image of FIG. 6.
FIG. 6.

Simulation results of case 2 (mode B): (a) contours and (b) eigenfunctions of various quantities. The dashed lines in the top (bottom) panel mark ( and ). Scales in the colorbars are amplified by a factor of .

Image of FIG. 7.
FIG. 7.

Real frequency and growth rate of mode B (a) as a function of for , , and and (b) as a function of for , and .

Image of FIG. 8.
FIG. 8.

Simulation results of case 3 (mode C): (a) contours and (b) eigenfunctions of various quantities. The dashed lines in the top (bottom) panel mark ( and ). Scales in the colorbars are amplified by a factor of .

Image of FIG. 9.
FIG. 9.

Real frequency of modes A, B, and C and growth rate of eigenmode (a) as a function of for , , and and (b) as a function of for , , and .

Image of FIG. 10.
FIG. 10.

The relative powers of perturbed electromagnetic quantities as a function of the real frequency at different ’s for (a) case 4 and (b) case 5.

Image of FIG. 11.
FIG. 11.

Simulation results of case 6 for extremely large guide field : (a) contours and (b) eigenfunctions of various quantities. Scales in the colorbars are amplified by a factor of .

Tables

Generic image for table
Table I.

Typical parameters for generation of current sheet instabilities.

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/content/aip/journal/pop/15/7/10.1063/1.2938732
2008-07-03
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: A particle simulation of current sheet instabilities under finite guide field
http://aip.metastore.ingenta.com/content/aip/journal/pop/15/7/10.1063/1.2938732
10.1063/1.2938732
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