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Table 4
Parameters employed in the thermo-chemical models
| Parameter | Value | |
|
|
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| Disc mass | Mdisc = 0.1,10-2,10-3,10-4M⊙ | |
| Flaring angle | ψ = 0.0,0.1,0.2 | |
| Inner radius | rin = 0.383 AUa | |
| Outer radius | rout = 400 AU | |
| Scale height at 100 AU | H100 AU = 10 AU | |
| Surface density power-law | q = −1 | |
| Stellar luminosity | L∗ = 30 L⊙ | |
| Stellar temperature | T∗ = 104 K | |
| Stellar X-ray luminosity | LX = 1029 erg s-1 | |
| Gas-to-dust mass ratio | g/d = 100 | |
| Distance | d =150 pc | |
| Inclination | i = 30° | |
| Grain size | a = 0.1–10 μm | |
| Grain size distribution | dn/da ∝ a-3.5 | |
| Grain composition | ISM (Weingartner & Draine 2001) | |
Notes.
(a)
Dust sublimation radius, 
AU (Dullemond et al. 2001).
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