Jovian magnetospheric ion cyclotron instability in the presence of parallel electric field |
| |
| Authors: | M M Ahmad Altaf Ahmad |
| |
| Institution: | (1) Department of Physics, Regional Engineering College, Srinagar, Kashmir, India |
| |
| Abstract: | A dispersion relation for left hand circularly polarized electromagnetic wave propagation in an anisotropic magnetoplasma in the presence of a very weak parallel electrostatic field has been derived with the help of linearized Vlasov and Maxwell equations. An expression of the growth rate has been derived in presence of parallel electric field for ion-cyclotron electromagnetic wave in an anisotropic media. The modification made in the growth rate by introducing parallel electric field and temperature anisotropy has been studied for fully ionized hydrogen plasma with the help of observations made on Jovian ionosphere and magnetosphere atL = 5.6 Rj. It is concluded that the growth (damping) of ion-cyclotron electromagnetic wave is possible when the wave vector is parallel (antiparallel) to the static electric field and effect is more pronounced at higher wave number. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
