Preliminary computation of the gap eigenmode of shear Alfvén waves on the LAPD<xref rid="cpb_27_12_125201_fn1" ref-type="fn">*</xref><fn id="cpb_27_12_125201_fn1"><label>*</label> <p>Project supported by the National Natural Science Foundation of China (Grant No. 11405271), the China Postdoctoral Science Foundation (Grant No. 2017M612901), the Fund from Chongqing Science and Technology Commission (Grant No. cstc2017jcyjAX0047), Chongqing Postdoctoral Special Foundation (Grant No. Xm2017109), the Fundamental Research Funds for Central Universities, China (Grant No. YJ201796), the Pre-research Key Laboratory Fund for Equipment (Grant No. 61422070306), and the Fund from the Laboratory of Advanced Space Propulsion (Grant No. LabASP-2017-10).</p></fn>

Preliminary computation of the gap eigenmode of shear Alfvén waves on the LAPD**

Project supported by the National Natural Science Foundation of China (Grant No. 11405271), the China Postdoctoral Science Foundation (Grant No. 2017M612901), the Fund from Chongqing Science and Technology Commission (Grant No. cstc2017jcyjAX0047), Chongqing Postdoctoral Special Foundation (Grant No. Xm2017109), the Fundamental Research Funds for Central Universities, China (Grant No. YJ201796), the Pre-research Key Laboratory Fund for Equipment (Grant No. 61422070306), and the Fund from the Laboratory of Advanced Space Propulsion (Grant No. LabASP-2017-10).

Chang Lei^†,

(color online) Variations of wave magnitude (rms) with radius (z = 3.98 m) (a) and axis (r = 0 m) (b) for three typical frequencies: 127 kHz, 167 kHz, and 202 kHz. The upper figure is identical to Fig. 14 in the previous study.^[5] The black bar in the lower figure labels the blade antenna. The unit 1 Gs = 10⁻⁴ T.