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Fig. 7 | Earth, Planets and Space

Fig. 7

From: Distribution of water-group ion cyclotron waves in Saturn’s magnetosphere

Fig. 7

The upper panel shows the projected orbit of Cassini in the cylindrical RZ plane across the L-shell from the Northern Hemisphere to the Southern Hemisphere. The red line denotes Cassini’s orbit and the blue lines denote the L-shell field lines going through points A and B, respectively. The lower panel shows the power spectrum of \(\delta B_{\phi }\), the blue dotted line shows the local W+ gyrofrequency (f local), and the black line is the W+ gyrofrequency at the equator (f eq) of the dipole L-shell of the Cassini orbit, which moves from A to B

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