Velocity-space signatures of energy transfer for ion-acoustic instabilities

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Table 2.

Comparison of linear theory and simulations (Table 1).

Run	Linear Theory			Simulation

	$\frac{ω}{ω_{pc}}$ $Mathematical equation: $ \frac{\omega}{\omega_{pc}} $$	$\frac{γ}{ω_{pc}}$ $Mathematical equation: $ \frac{\gamma}{\omega_{pc}} $$	$\frac{v_{res}}{v_{t h, c}}$ $Mathematical equation: $ \frac{v_{res}}{v_{th,c}} $$	$\frac{γ}{ω_{pc}}$ $Mathematical equation: $ \frac{\gamma}{\omega_{pc}} $$
Fiducial	0.42	0.0068	3.333	0.01
1a	0.309	0.0375	2.452	0.04
1b	0.301	0.0249	2.389	0.028
1c	0.292	0.00982	2.317	0.012
2a	0.255	0.061	2.024	0.0645
2b	0.349	0.0385	2.77	0.041
2c	0.385	0.0254	3.06	0.0283
3a	0.316	0.048	2.508	0.0537
3b	0.296	0.053	2.349	0.0599
3c	0.282	0.0483	2.238	0.0541

Notes. The theoretical and simulated results are both for wavenumber kλ_Dc = 0.126.

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