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Table 1

Parameters of the disk models.

Parameter Range
Chemistry
Chemical age 1 Myr
Chemical network Miotello et al. (2016)

Physical structure
γ 0.5, 1, 1.5
ψ 0.1
hc 0.1 rad
Rc 0.5, 1, 2, 5, 15 au
Mdisk 10−5, 10−4, 10−3, 10−2 M
Gas-to-dust ratio 100
flarge 0.9
χ 0.2
i 10o, 30o, 60°

Stellar spectrum
VLMSs (**) Teff = 3400 K, Lbol = 0.26 L
T Tauri (**) Teff = 4000 K, Lbol = 1 L

Notes. (**) FUV excess added, see text.

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