Physics – Plasma Physics
Scientific paper
Dec 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmsh31a1462l&link_type=abstract
American Geophysical Union, Fall Meeting 2009, abstract #SH31A-1462
Physics
Plasma Physics
[7815] Space Plasma Physics / Electrostatic Structures, [7829] Space Plasma Physics / Kinetic Waves And Instabilities, [7851] Space Plasma Physics / Shock Waves, [7852] Space Plasma Physics / Solitons And Solitary Waves
Scientific paper
Ion acoustic shocks are studied by means of a fourth-order implicit Vlasov simulation. Our simulation results indicate a good correlation between the electrostatic potential jump and the electrons temperature jump in the ion acoustic shock simulations. The initial electron temperature jump in our simulation sets up an initial cross-shock potential jump in the electron time scale. The following interactions between field and plasma can modify the potential profile, the shock front speed, the electron temperature, as well as the flow speeds of ions and electrons in the upstream and downstream shock transition regions. Ion-acoustic waves, solitons, and double layers are found in the vicinity of the ion acoustic shock. For all the nonlinear structures, the good correlation between the electrostatic potential jump and the electrons temperature jump remain unchanged. Our results indicate that the assumption of isothermal electrons as commonly assumed in previous theoretical studies of ion acoustic solitons and shocks is not valid. A simplified theoretical model for the ion acoustic solitons and shocks are proposed in this study based on our simulation results. Applications of our simulation results to the ion acoustic solitary waves found in the electron foreshock region will be discussed.
Lyu L.
Tsai Tun Tao
No associations
LandOfFree
Simulation and Theoretical Study of ion Acoustic Shocks does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Simulation and Theoretical Study of ion Acoustic Shocks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Simulation and Theoretical Study of ion Acoustic Shocks will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1783873