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The Pitch-angle Distributions of Suprathermal Ions near an Interplanetary Shock

  • Authors: Liu Yang, Lars Berger, Robert F. Wimmer-Schweingruber, Linghua Wang, Jia Yu, Antoinette B. Galvin, and Eberhard Möbius

2020 The Astrophysical Journal Letters 888 L22.

  • Provider: AAS Journals

Caption: Figure 2.

Summary plot of the reverse SIR shock on 2008 March 9. (a)–(c) Magnitude ﹩| B| ﹩, azimuthal angle ϕB, and elevation angle θB of IMF in 1 s resolution, (d) solar wind proton bulk velocity in 1 minute resolution. (e)–(g) Count rate per minute of ∼10–40 keV/nuc He2+, ∼8–20 keV/nuc He+, and ∼10–40 keV/nuc H+. The right blue line indicates the shock arrival at ∼1950 UT, and the bold colored lines mark the boundaries of the four periods analyzed in this study.

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