Table 2
Parameters relevant to the RT modeling of the HD 141569 disk.
| Star parameters | |||||
|---|---|---|---|---|---|
| Distance | [pc] | 110 | |||
| Temperature | [K] | 9750 | |||
| Luminosity | [L⊙] | 19 | (see table notes) | ||
| AV | [mag] | 0.095 | |||
| Rings parameters | |||||
| Parameter | Unit | 1st | 2nd | 3rd | 4th |
| Inner rim | [au] | 0.8 | 5 | 185 | 300 |
| Outer rim | [au] | 0.84 | 110 | 500 | 500 |
| Particle type | QHP | Silicate | Silicate | Silicate | |
| Dust mass | [M⊕] | 1.4 × 10−8 | 0.020 | 1.665 | 0.233 |
| Smallest particle size | [μm] | 0.006 | 1.26 | 0.63 | 20 |
| Biggest particle size | [μm] | 0.006 | 10 000 | 10 000 | 10 000 |
| Inner surface density power law | –1 | –1 | –1 | –1 | |
| Size distribution power law | –3.5 | –3.5 | –3.5 | –3.5 | |
| Scale-height at 100 au | [au] | 1.4 | 1.4 | 7.5 | 7.5 |
| Ring inclination | [degree] | 59 | 59 | 59 | 59 |
Notes. This model only describes the case of a QHP-dominated inner ring. The stellar luminosity has been revisited in this work as follows. We determined a lower and upper limit of that value by matching in the K band the photospheric flux plus the near-IR excess with the 2 MASS photometry within its 5% uncertainty (see Table G.1). This provided a stellar luminosity between 18 and 19 L⊙, in agreement with the revised value by Vioque et al. (2018).
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