Abstract:
In this paper the influences of the ion temperature on the nonlinear lowfre-quency electrostatic waves in a magnetized low-β plasma are discussed.It is found that there exist three types of nonlinear waves under the parameter a T
i/T
e≠0 (where T
i and T
e are the ion and electron thermal energies respectively) : (i) nonlinear ion-cyclotron periodic waves with a wave speed ν
p>(1+α)
(1/2).cs (where cs,is the ion acoustic velocity) (ii) ion-acoustic solitons with (1+α)(1/2)cs.cosθp<(1+α)(1/2).cs and (iii) nonlinear ion-acoustic periodic waves with vp<(1+α)(1/2).cs.cosθ (where θ is the angle between the wave vector and the magnetic field).Moreover,the maximum electric potential θm of the soliton decreases and the amplitudes of the electric potential for both nonlinear periodic waves are almost constant when the parameter a4 increases.
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