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Fundamental Electromagnetic Emissions by a Weak Electron Beam in Solar Wind Plasmas with Density Fluctuations

• Authors: C. Krafft, and P. Savoini

2022 The Astrophysical Journal Letters 924 L24.

• Provider: AAS Journals

Caption: Figure 2.

Distributions of the wave spectral magnetic energy density log10(∣Bzk(kx, ky)∣2) emitted around the frequency ωkωp, for ΔN = 0.05 and the “large” simulation box of size ﹩{L}_{x}\times {L}_{y}=5792\times 2896{\lambda }_{D}^{2}﹩. The initial plasma density distribution is given in Figure 1. The spectra are shown at times ωpt = 145, 680, 940, 1485, 2020, and 3100. A green circle of radius kλDkthλD is superposed on the spectra at the first and last times. The same color bar holds for all plots. All variables are normalized.