Physics – Plasma Physics
Scientific paper
Dec 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsm23b2044p&link_type=abstract
American Geophysical Union, Fall Meeting 2011, abstract #SM23B-2044
Physics
Plasma Physics
[7829] Space Plasma Physics / Kinetic Waves And Instabilities, [7867] Space Plasma Physics / Wave/Particle Interactions
Scientific paper
Our understanding of the global consequences of waves generated by anisotropy instabilities is rather limited due to the sparsity of measurements available from spacecraft. Here, we employ global hybrid simulations to obtain a physical description of a model planetary magnetosphere in which kinetic wave-particle interactions take place. The hybrid code treats electrons as a charge neutralizing fluid while ions are followed in time using the particle-in-cell method. A spherical conductor with a dipole magnetic field is placed in the solar wind and advanced to a quasi-steady state to obtain a fully developed planetary magnetosphere. We identify regions with anisotropic plasma and high parallel beta which may be unstable to firehouse and ion cyclotron instabilities, and trace these regions in space and time to understand energy transport through wave-particle interactions.
Paral Jan
Rankin Robert
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