Effects of wave-particle interactions on double-hump distributions of the H+ polar wind
View/ Open
Authors
Pierrard, V.
Barghouthi, I.A.
Discipline
Physical sciences
Audience
Scientific
Date
2006Metadata
Show full item recordDescription
A Monte Carlo simulation is used in order to study the effects of wave-particle interactions (WPI) on H+ distributions in the polar wind outflow. The simulation also considers effects of the gravity, the polarization electric field, the divergence of geomagnetic field lines and H+-O+ Coulomb collisions. The proton velocity distribution function (VDF) and the profiles of its moments (density, bulk velocity, parallel and perpendicular temperatures, heat flux...) are found for different levels of WPI, i.e., for different values of the normalized diffusion rate in the velocity space (D⊥). We find that the wave-particle interactions accelerate the polar wind and can have important effects on the double-hump H+ distribution obtained in the transition region between the collision-dominated low altitudes and the collisionless high altitude regions.
Citation
Pierrard, V.; Barghouthi, I.A. (2006). Effects of wave-particle interactions on double-hump distributions of the H+ polar wind. , Astrophysics and Space Science, Vol. 302, Issue 1-4, 35-41, DOI: 10.1007/s10509-005-9002-y.Identifiers
scopus: 2-s2.0-33846972977
Type
Article
Peer-Review
Yes
Language
eng