Collisionless Transport of Energetic Electrons in the Solar Corona
Numerical Simulation of Anomalous Transport Effect
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The plasma transport properties in the collisionless solar corona environment have been extensively studied in this thesis. The influence of the collisionless transport was first investigated in this work from the key mechanism that triggers a coronal reconnection, the origin of the anomalous resistivity in the coronal current sheet, then it follows the particle acceleration via the collisionless looptop fast shock. In the last chapter we also demonstrate that the common observation of broken-power-law HXR spectrum is simply a result of plasma collisionless interaction with the self-generated ...
The plasma transport properties in the collisionless solar corona environment have been extensively studied in this thesis. The influence of the collisionless transport was first investigated in this work from the key mechanism that triggers a coronal reconnection, the origin of the anomalous resistivity in the coronal current sheet, then it follows the particle acceleration via the collisionless looptop fast shock. In the last chapter we also demonstrate that the common observation of broken-power-law HXR spectrum is simply a result of plasma collisionless interaction with the self-generated electrostatic double layers. One of the main results in this collisionless transport study is the derivation of the general multifluid dispersion relation. This general dispersion relation allows a plasma stability analysis in the linear stage, and it also help us on the identification of the unstable waves that in later stage creates the plasma phase space structures, which can eventually cause great influence to the characteristics of plasma transport.
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