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Spectrum of compressional Alfvén waves

1983; AIP Publishing; Volume: 26; Issue: 9 Linguagem: Inglês

10.1063/1.864445

2163-4998

S. M. Mahajan, D. W. Ross,

Ionosphere and magnetosphere dynamics

The spectrum of compressional Alfvén eigenmodes localized in the potential well created by a combination of the variation in plasma density and the wavenumber k⊥=m/r is obtained, and its importance for radio frequency current drive is discussed. It is found that modes with small parallel wavenumbers and frequencies below the ion cyclotron frequency are attractive for current drive.