Obliquely propagating ion-acoustic solitons in a warm-ion magnetized plasma

Considering the charge separation effect, the soliton solution of the KdV equation is discussed for a warm-ion magnetized plasma with two Maxwellian electron components. The effect of ion temperature, obliqueness and magnetization on the amplitude and width of the soliton is discussed in detail. The theory is applied to the case of rarefactive solitons observed in the magnetosphere.