Table 2
Particle radii ad and radiation pressure factors β used in the simulations.
| ad (μm) | Mass (kg) | β | Dominant force |
|---|---|---|---|
| 0.049 | 1.00 × 10−18 | 0.55 | EM |
| 0.072 | 3.16 × 10−18 | 0.95 | EM |
| 0.11 | 1.00 × 10−17 | 1.38 | RP and EM |
| 0.16 | 3.16 × 10−17 | 1.59 | (not observable at Earth) |
| 0.23 | 1.00 × 10−16 | 1.49 | (not observable at Earth) |
| 0.34 | 3.16 × 10−16 | 1.17 | RP and EM |
| 0.49 | 1.00 × 10−15 | 0.81 | gravity |
| 0.72 | 3.16 × 10−15 | 0.52 | gravity |
| 1.1 | 1.00 × 10−14 | 0.33 | gravity |
| 1.6 | 3.16 × 10−14 | 0.21 | gravity |
| 2.3 | 1.00 × 10−13 | 0.14 | gravity |
| 3.4 | 3.16 × 10−13 | 0.09 | gravity |
| 4.9 | 1.00 × 10−12 | 0.06 | gravity |
Notes. The force dominating the dynamics of a given size can be the radiation pressure (RP), solar gravity, and/or the electromagnetic (EM) force. Particles around 0.2 μm are not observable in the Earth’s orbit because the repulsive force of the radiation pressure leads to a deflection distance rh > 1 AU from the Sun for β ≳ 1.4.
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