1They are therefore sometimes called `Moment
2This is often, for historical reasons,
written an the equivalent form (called the Appleton-Hartree
dispersion relation) that can be considered to be
N2 = 1 − [(2(A−B+C))/(2A−B±F)].
The benefit of the earlier Appleton Hartree formulation is not this trivial
reorganization, however. It is that in it the coefficients A, B, and C
are effectively multiplied by a factor
r=(Ωe2−ω2)(ω2−Ωi2). That has the considerable
benefit of avoiding the necessity to flip the sign of F in order to
get continuous behavior of the solutions through the cyclotron
frequencies. The benefit can also be obtained by writing the solution as
File translated from
On 14 Nov 2017, 10:06.