Table 3
Energy distribution between fields and particles at the end of different simulations.
| Simulation parameters | Final energy in % of ℰ0 | Ion/electron energy distribution | |||||||||
| ω ce / ω pe | nbg/ncs(0) |
|
|
|
B x | E tot | kinetic energy | cs ions | cs elec | bg ions | bg elec |
|
|
|||||||||||
| mi/me = 50 | |||||||||||
| 6 | 0.1 | 7.1 | 260 | 0.93 | 21% | 5% | 74% | 54% | 46% | 63% | 37% |
|
|
|||||||||||
| mi/me = 25 | |||||||||||
| 1 | 0.1 | 0.4 | 9.9 | 0.53 | 11% | 1% | 48% | 67% | 33% | 60% | 40% |
| 3 | 0.1 | 3.6 | 83 | 0.88 | 20% | 3% | 62% | 56% | 44% | 63% | 37% |
| 3 | 0.3 | 1.2 | 27 | 0.73 | 17% | 4% | 74% | 61% | 39% | 62% | 38% |
| 6 | 0.1 | 14 | 260 | 0.97 | 18% | 4% | 73% | 53% | 47% | 60% | 40% |
|
|
|||||||||||
| mi/me = 12 | |||||||||||
| 3 | 0.1 | 7.5 | 83 | 0.93 | 21% | 2% | 72% | 55% | 45% | 60% | 40% |
|
|
|||||||||||
| mi/me = 1 | |||||||||||
| 3 | 0.1 | 83 | 83 | 0.99 | 34% | 8% | 87% | 50% | 50% | 50% | 50% |
Notes. cs stands for the current sheet population, bg for the background population. The final energy in the electric field is Etot, and is dominated by the energy in Ey. The energy in Bx is denoted by Bx. As explained in Fig. 2, ℰ0 is the total (mostly magnetic) initial energy in the “reconnection area”, which is the area from where the particles reach the current sheet before the end of the simulation. Because of the difficulty of precisely measuring this area, the percentage has to be taken with a ±5% relative uncertainty. The energy distribution between ions and electrons is not affected by this.
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