TY - GEN
T1 - Comparison of solar wind driving mechanisms
T2 - 10th International Solar Wind Conference
AU - Tam, Sunny W.Y.
AU - Chang, Tom
N1 - Funding Information:
This work is partially supported by AFOSR, NASA, and NSF.
Publisher Copyright:
© 2003 American Institute of Physics.
PY - 2003/9/2
Y1 - 2003/9/2
N2 - The combined kinetic effects of two possible solar wind driving mechanisms, ion cyclotron resonance and suprathermal electrons, have been studied in the literature [1]. However, the individual contribution by these two mechanisms was unclear. We compare the two effects in the fast solar wind. Our basic model follows the global kinetic evolution of the solar wind under the influence of ion cyclotron resonance, while taking into account Coulomb collisions, and the ambipolar electric field that is consistent with the particle distributions themselves. The kinetic effects associated with the suprathermal electrons can be included in the model as an option. By comparing our results with and without this option, we conclude that, without considering any wave-particle interactions involving the electrons, the kinetic effects of the suprathermal electrons are relative insignificant in the presence of ion cyclotron resonance in terms of driving the solar wind.
AB - The combined kinetic effects of two possible solar wind driving mechanisms, ion cyclotron resonance and suprathermal electrons, have been studied in the literature [1]. However, the individual contribution by these two mechanisms was unclear. We compare the two effects in the fast solar wind. Our basic model follows the global kinetic evolution of the solar wind under the influence of ion cyclotron resonance, while taking into account Coulomb collisions, and the ambipolar electric field that is consistent with the particle distributions themselves. The kinetic effects associated with the suprathermal electrons can be included in the model as an option. By comparing our results with and without this option, we conclude that, without considering any wave-particle interactions involving the electrons, the kinetic effects of the suprathermal electrons are relative insignificant in the presence of ion cyclotron resonance in terms of driving the solar wind.
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U2 - 10.1063/1.1618590
DO - 10.1063/1.1618590
M3 - Conference contribution
AN - SCOPUS:85044344365
T3 - AIP Conference Proceedings
SP - 259
EP - 262
BT - Solar Wind Ten
A2 - Velli, Marco
A2 - Bruno, Roberto
A2 - Malara, Francesco
PB - American Institute of Physics Inc.
Y2 - 17 June 2002 through 21 June 2002
ER -