Oblique propagating whistler mode wave with parallel AC electric field at magnetosphere of Uranus

Oblique propagating electromagnetic whistler mode instability has been studied having a k vector at angle toambient magnetic field for bi-Maxwellian distribution function with parallel AC electric field in the magnetosphereof Uranus. The dispersion relation and growth rate have been calculated for plasma parameters suited to themagnetosphere of Uranus by using the method of characteristic solutions and kinetic approach. The effect of ACelectric field and temperature anisotropy for oblique propagating electromagnetic whistler mode instability hasbeen reported and discussed in the ‘results and discussion section. The comparisons have been made withobservations made by Voyager 2. It is found that whistler mode emissions observed at lower radial distancescannot reproduce in our calculations. The present studies should be helpful in making estimates on the scatteringproperties of whistler mode waves and, thus, contribute to a better understanding of auroral activity in theplanetary atmosphere.

کلیدواژه ها:

Whistler mode wave ، Magnetosphere ، Uranus