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Magnetic field fluctuations across the Earth's bow shock

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Figure

Fig. 1. Positions of the 132 AMPTE IRM bow shock crossings rotated into the ecliptic plane: quasi-parallel are + signs;  quasi-perpendicular low-β (β < 0.5) are triangles,; quasi-perpendicular medium-β (0.5 < β < 1.0) are diamonds; quasi-perpendic
Fig. 2. Superposed-epoch analysis of magnetic spectra of 92 quasi-perpendicular (left) and 40 quasi-parallel bow shock crossings (right) from 3 min upstream to 1 min downstream
Fig. 3. Superposed-epoch analysis of magnetic spectra of 92 quasi-perpendicular (left) and 40 quasi-parallel bow shock crossings (right) from 3 min to 7 min downstream
Fig. 4. Superposed-epoch analysis of the plasma parameter β, the proton temperature anisotropy T p⊥ /T pk , and the mirror instability criterion from 2 min upstream to 4 min downstream of the quasi-perpendicular bow shock (BS) on the left for 20 low-β, on
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