Ion Beam with General loss-cone Distribution Function on EMIC Waves in Multi-ions Magnetospheric Plasma
Author Affiliations
- 1School of Studies in Physics, Vikram University Ujjain, MP-456 010, INDIA
Res. J. Engineering Sci., Volume 1, Issue (5), Pages 25-30, November,26 (2012)
Abstract
Electromagnetic ion-cyclotron (EMIC) waves have been studied by single particle approach. The effect of ion beam on EMIC instability in multi-ions is evaluated. The dispersion relation, growth rate of the electromagnetic ion-cyclotron waves in a low β (ratio of plasma pressure to magnetic pressure), homogeneous plasma have been obtained. The wave is assumed to propagate parallel to the static magnetic field. The effect of ion beam on EMIC waves in multi-ions is to enhance the growth rate of EMIC waves. The results are interpreted for the space plasma parameters appropriate to the auroral acceleration region of the earth's magnetospheric plasma.
References
- Ahirwar G., Varma P. and Tiwari M. S., Study of electromagnetic ion-cyclotron waves with general loss-cone distribution and multi-ions plasma-particle aspect approach, Ind. J. of Pure & Appl. Phys.,48 , 334 (2010)
- Hoyos J. and Gomberoff L., Influence of nonlinear circularly polarized waves on linear electromagnetic beamplasma waves, The Astrophys J., 630, 1125 (2005)
- Gary S.P., Los Alamos National Laboratory, Los Alamos, New Mexico, 87545 (1984)
- Temerien M., McFadden J., Boehm M., Carlson C.W. and Lotko W., Production of flickering aurora and field-aligned electron fluxes by electromagnetic ion cyclotron waves, J.Geophys. Res.,91, 5769 (1986)
- Ahirwar G., Varma P. and Tiwari M.S., Beam effect on electromagnetic ion-cyclotron waves with general loss-cone distribution function in an anisotropic plasma-particle aspect analysis, Ann. Geophys., 25, 557 (2007)
- Chaston C.C., Bonnell J.W., McFadden J.P., Ergun R.E. and Carlson C.W., Electromagnetic ion cyclotron waves at proton cyclotron harmonics, J. Geophys. Res., 107(A11), 1351 (2002)
- Gomberoff L. and Elgueta R., Resonant acceleration of alpha particles by ion cyclotron waves in the solar wind, J. Geophys. Res., 96, 9801 (1991)
- Dusenbery P.B. and Hallweg J.V., Ion-cyclotron heating and acceleration of solar wind mirror ions, J.Geophys. Res., 86, 153 (1981)
- Shukla P.K. and Stenflo L., Non-linear propagation ofelectromagnetic ion-cyclotron Alfven waves, Phys. Fluids, 28, 1576 (1985)
- Crammer S.R. and Van-Ballegooijen A.A., Alfvenic turbulence in the extended solar corona: Kinetic effects and proton heating, Astrophys. J.,594, 573 (2003)
- Hollweg J.V., Drives of the solar wind: then and now, Phil. R. Soc. A.,364, 505 (2006)
