The electron-acoustic mode

AIP Publishing - Tập 28 Số 8 - Trang 2439-2441 - 1985
S. Peter Gary1, R. L. Tokar1
1Earth and Space Sciences Division, University of California, Los Alamos National Laboratory, Los Alamos, New Mexico 87545

Tóm tắt

This paper examines electrostatic modes in an unmagnetized, homogeneous, Vlasov plasma with three Maxwellian components: ions, hot electrons, and cool electrons. In such a plasma, the electron-acoustic mode with frequencies between the ion and electron plasma frequencies may propagate with light damping. The conditions that allow propagation of this mode, which is distinct from the well-known ion-acoustic and Langmuir waves, are given in detail; approximate necessary conditions are 10≲Th/Tc and 0<nc<0.8ne, where the subscripts c, h, and e refer to the cool and hot electron components and the total electron population, respectively.

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Tài liệu tham khảo

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1965, Phys. Fluids, 8, 471, 10.1063/1.1761247

1977, J. Phys. Soc. Jpn., 4, 1819

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AIP Publishing

Tập 28 Số 8

2439-2441

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