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Table 1
Model parameters for simulation of the dynamical evolution.
| Parameter | Value |
|---|---|
| Stellar type | A3V |
| Mass of the star M* | 1.92 M⊙ |
| Luminosity of the star L* | 16.6 L⊙ |
| Effective temperature T* | 8590 K (Mamajek 2012) |
| Radial extension | 5 au ≤ R ≤ 600 au |
| Number of grid points in radial direction | 694 |
| Azimuthal extension | 0 ≤ϕ < 2π |
| Number of grid points in azimuthal direction | 6284 |
| Size of dust grains and planetesimals s | [0.264 μm, 48.6 km] |
| Initial size distribution n(s) | n(s) ∝ s−3.66Torbit/T0 |
| Belt eccentricities eb | eb = 0.0, 0.1, 0.2, and 0.4 |
| Dynamical excitation Δeb | Δeb = ±0.05, 0.1, and 0.2 |
Catastrophic disruption threshold  |
“very high” (Qs = 1.25 × 104 J kg−1), |
| (material strength Qs) | “high” (Qs = 2.5 × 103 J kg−1), |
| “reference” (Qs = 5 × 102 J kg−1), | |
| “low” (Qs = 1 × 102 J kg−1), | |
| “very low” (Qs = 0.2 × 102 J kg−1) | |
| Dust composition and references of | Homogeneous mixture of |
| corresponding optical data | astrosilicate (Draine 2003) and |
| water ice (Li & Greenberg 1998) | |
| Bulk density of dust ρbulk | 2.35 g cm−3 |
| Distance to the debris disk system | 8 pc |
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