Premium
Localization of whistler wave and turbulent spectra in the magnetotail region
Author(s) -
Pathak Neha,
Yadav Nitin,
Sharma Swati,
Sharma Prachi,
Sharma R. P.
Publication year - 2017
Publication title -
journal of geophysical research: space physics
Language(s) - English
Resource type - Journals
eISSN - 2169-9402
pISSN - 2169-9380
DOI - 10.1002/2016ja023640
Subject(s) - whistler , physics , turbulence , perturbation (astronomy) , nonlinear system , computational physics , spectral line , magnetic field , magnetic reconnection , context (archaeology) , geophysics , classical mechanics , mechanics , quantum mechanics , geology , paleontology
Observations show that whistler waves play a very crucial role both in magnetic reconnection and turbulence. In this context, linear and nonlinear dynamical equations of whistler wave have been derived and further these equations have been solved numerically as well as semianalytically. For application purpose, magnetotail parameters have been chosen. The obtained results reveal that the nonlinearity as well as field perturbation results in the formation of localized structures. These structures contribute to the turbulence and lead to the formation of current sheets in the magnetotail. Finally, the power spectrum has been evaluated and compared with the observed spectra in the magnetotail ion diffusion region as reported.