Alfvén continuum modes around an X-point with a guide field

Open Access

Fig. 7.

Alfvén continuum frequencies (ω) as a function of the flux surface (|ψ|) for the fundamental tone, with B_0y = 0 (solid line), B_0y = 2 (dashed line), and B_0y = 10 (dotted line). The frequencies are given in normalized form, i.e., in units of ω_R.

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