Table 2
Fundamental parameters of the model grid, compared to that of the reference T Tauri model by Woitke et al. (2016).
| Symbol | Quantity (units) | Grid value(s) | |
|
|
|||
| M∗ | Stellar mass (M⊙) | 0.06 | 0.7 |
| L∗ | Stellar luminosity (L⊙) | 0.0822 | 1 |
| Teff | Effective temperature (K) | 3000 | 4000 |
| fUV | UV excess (LUV/L∗) | 0.01 | 0.01 |
| pUV | UV power law exponent | 1.0 | 1.3 |
| LX−ray | 1029 | 1030 | |
| ζCR | Cosmic ray H2 ionization rate (s-1) | 1.3 × 10-17 | 1.7 × 10-17 |
| Mdisc | Disc mass (× 10-4M⊙) | 1, 2, 4, 8, 15 | 100 |
| ρd/ρg | Dust-to-gas ratio | 0.01 | 0.01 |
| Rin | Inner disc radius (AU) | 0.035 | 0.07 |
| Rout | Outer disc radius (AU) | 600 | |
| Rtaper | Tapering-off radius (AU) | 0.125 × Rout | 100 |
| H0 | Scale height at 100 AU (AU) | 10 | 10 |
| β | Flaring exponent H(r) = H0(r/r0)β | 1.15 | 1.15 |
| N | Number of grid points | 80 × 80 | 160 × 150 |
| apow | Dust size distribution f(a) ∝ a− apow | 3.5 | 3.5 |
| a min | Min. dust grain size (μm) | 0.05 | 0.05 |
| a max | Max. dust grain size (μm) | 3000 | 3000 |
| i | Inclination angle (°) | 45 | 45 |
| α | 10-3 | 10-2 | |
| χ ISM | 1 | 1 | |
Notes. Every possible combination of Rout and Mdisc is used, to create a grid of 50 models. Parameter definitions are further explained by Woitke et al. (2009).
Reference. References are as follows: 1: Woitke et al. (2016); 2: Dorschner et al. (1995); 3: Zubko et al. (1996); 4: Dubrulle et al. (1995); 5: Draine (1978). †: The dust is a distribution of hollow spheres, where the maximum fractional volume filled by the central void is 0.8 (Min et al. 2005, 2016).
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