The solar wind disturbances result in the emergence of condensation structures in plasma comet tails. Most of them are correlated with plasma vortex flows. The features of condensations are analysed. Based on the theo...The solar wind disturbances result in the emergence of condensation structures in plasma comet tails. Most of them are correlated with plasma vortex flows. The features of condensations are analysed. Based on the theories of magnetic hydrodynamics and forcefree fields, the construction and the distribution of magnetic field and its energy in condensations are specifically discussed. Details on the coupling process between an unsteady plasma motion and a magnetic field are given. The coupling effect makes the energy in comet tails change into a force-free field in condensation, so that the magnetic field energy in the condensation continuously increases. Many phenomena observed in comet tails can be explained with the idea.展开更多
The large accelerations of plasma were observed early in type-Ⅰ comet tail. The accelerations can reach 300 cm/S^2. Recently, the direct measurements for comet G-Z show that the energy of particles reaches 2×10~...The large accelerations of plasma were observed early in type-Ⅰ comet tail. The accelerations can reach 300 cm/S^2. Recently, the direct measurements for comet G-Z show that the energy of particles reaches 2×10~5 eV. It is much higher than the initial展开更多
文摘The solar wind disturbances result in the emergence of condensation structures in plasma comet tails. Most of them are correlated with plasma vortex flows. The features of condensations are analysed. Based on the theories of magnetic hydrodynamics and forcefree fields, the construction and the distribution of magnetic field and its energy in condensations are specifically discussed. Details on the coupling process between an unsteady plasma motion and a magnetic field are given. The coupling effect makes the energy in comet tails change into a force-free field in condensation, so that the magnetic field energy in the condensation continuously increases. Many phenomena observed in comet tails can be explained with the idea.
基金Project supported by the National Natural Science Foundation of China.
文摘The large accelerations of plasma were observed early in type-Ⅰ comet tail. The accelerations can reach 300 cm/S^2. Recently, the direct measurements for comet G-Z show that the energy of particles reaches 2×10~5 eV. It is much higher than the initial
