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Nonlinear evolution of electromagnetic ion cyclotron waves
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10.1063/1.3571598
/content/aip/journal/pop/18/4/10.1063/1.3571598
http://aip.metastore.ingenta.com/content/aip/journal/pop/18/4/10.1063/1.3571598
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Linear dispersion relations. Left column: real frequencies, right column: growth rates. Different rows correspond to: (a) pure proton-electron plasma; (b) , , ; (c) , , ; (d) , , , . In all cases, the temperature anisotropy of hot species is and parallel proton plasma beta .

Image of FIG. 2.
FIG. 2.

(Color online) Simulation results for case 1: pure proton–electron plasma. (a) Evolution of parallel (solid line Tp⊥ ) and perpendicular (dashed line Tp∥ ) average proton temperatures. (b) Energy redistribution: Wp,th - proton thermal energy, Wp,d proton drift energy, Wm - wave magnetic energy, Wtot - total; (c) Evolution of the wave number spectrum; (d) Two-dimensional ω – k wave spectrum. White and red (dark gray) dashed lines show the dispersion curves for initial and final plasma parameters, respectively.

Image of FIG. 3.
FIG. 3.

(Color online) Simulation results for case 2: 95% protons and 5% hot He+ ions. (a) Evolution of parallel (solid lines) and perpendicular (dashed lines) average temperatures. Blue lines (Tp⊥ , Tp∥ ) - protons, green lines (THe⊥ , THe∥ ). He+ ions; (b) Energy redistribution: solid blue (Wp,th ) - proton thermal energy, dashed blue (Wp,d )- proton drift energy, solid green (WHe,th )- He+ thermal energy, dashed green (WHe,d )- He+ drift energy, cyan (Wm )- wave magnetic energy, dashed red (Wtot )- total; (c) Evolution of the wave number spectrum; (d) Two-dimensional ω – k wave spectrum [same notation as in Fig. 2(d)].

Image of FIG. 4.
FIG. 4.

(Color online) Simulation results for case 3: 95% protons and 5% cool He+ ions. (a) Evolution of parallel and perpendicular average temperatures [same notation as in Fig. 3(a)]; (b) Energy redistribution [same notation as in Fig. 3(b)]; (c) Evolution of the wave number spectrum; (d) Two-dimensional ω – k wave spectrum [same notation as in Fig. 2(d)].

Image of FIG. 5.
FIG. 5.

(Color online) Simulation results for case 4: 80% cold protons, 16% hot protons and 4% hot isotropic He+ ions. (a) Evolution of parallel (solid lines) and perpendicular (dashed lines) average temperatures. Blue lines (Tp⊥ , Tp∥ ) - hot protons, green lines (THe⊥ , THe∥ ) - He+ ions, purple (Tpc⊥ ) - cold protons; (b) Energy redistribution: solid blue (Wp,th ) - hot proton thermal energy, dashed blue (Wp,d ) - hot proton drift energy, solid green (WHe,th ) - He+ thermal energy, dashed green (WHe,d ) - He+ drift energy, dashed purple (Wpc,d )- cold proton drift energy, cyan (Wm )- wave magnetic energy, dashed red (Wtot )- total; (c) Evolution of the wave number spectrum; (d) Two-dimensional ω – k wave spectrum [same notation as in Fig. 2(d)].

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/content/aip/journal/pop/18/4/10.1063/1.3571598
2011-04-29
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Nonlinear evolution of electromagnetic ion cyclotron waves
http://aip.metastore.ingenta.com/content/aip/journal/pop/18/4/10.1063/1.3571598
10.1063/1.3571598
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