Abstract
Transverse waves and instabilities propagating along the magnetic field in a homogeneous plasma are discussed analytically and numerically for frequencies of the order of the ion cyclotron frequency and below. The free energy driving the instabilities is assumed to be provided by thermal anisotropies, with the parallel temperature exceeding the perpendicular temperature, a situation appropriate to the solar wind near the earth and to the downstream conditions in collisionless shocks propagating approximately parallel to the magnetic field. It is shown that in the case where the ion β is of order one the long wavelength Firehose instability is not stabilized by finite Larmor radius effects, but that for smaller wavelengths it goes over smoothly into the resonant proton mode, discussed by Kennel & Scarf (1968).
Publisher
Cambridge University Press (CUP)
Reference23 articles.
1. Hundhausen A. J. & Völk H. J. 1971 Energy and momentum exchange in transverse Plasma waves. (To be published.)
2. Direct observations of solar-wind particles
3. Hundhausen A. J. 1970 Preprint LA-DC-11068.
4. Thermal anisotropies and electromagnetic instabilities in the solar wind
Cited by
41 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献