- Conference date: 17–22 June 2012
- Location: Big Island, Hawaii
The present paper theoretically constructs the proton temperature anisotropy versus beta distribution by means of quasi-linear theory. It is shown that the simulated solar wind data distribution is constrained by the apparent mirror and oblique fire-hose marginal instability curves, which is consistent with observation. To achieve this closure, it is note that the actual magnetic field intensity near 1 AU is characterized intermediate-scale temporal variations. Making use of this fact, the present paper carries out the quasi-linear analysis of the temperature anisotropy-driven instabilities with adiabatically time-varying B field. This prescription successfully leads to the superficial mirror and oblique marginal instability constraints for the proton anisotropy, thus providing a possible explanation for the observation.
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