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Table 1
Main parameters of the Class I model.
| Quantity | Symbol | Value |
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| stellar mass | M∗ | 0.5 M⊙ |
| stellar effective temp. | T∗ | 5000 K |
| stellar luminosity | L∗ | 1.0 L⊙ |
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| disk gas mass | Mdisk | 0.02 M⊙ |
| disk inner radius | Rin | 0.6 au |
| disk tapering-off radius | Rtap | 100 au |
| column dens. pow. ind. | ϵ | 1.0 |
| tapering parameter | γ | −1.0 |
| reference scale height | H(100au) | 10 au |
| flaring power index | β | 1.1 |
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| centrifugal radius | R c | 100 au |
| mass infall rate | Ṁ if | 5 × 10-6M⊙ yr-1 |
| outer radius | R out | 5000 au |
| cavity opening angle | β cav | 20° |
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| dust to gas mass ratio | δ | 0.01 |
| min. dust particle radius | a min | 0.005 μm |
| max. dust particle radius | a max | |
| envelope | 1 μm | |
| disk | 1000 μm | |
| dust size dist. power ind. | a pow | 3.5 |
| dust compositiona | Mg0.7Fe0.3SiO3 | 60% |
| (volume fractions) | amorph. carbon | 20% |
| vacuum | 20% | |
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| cosmic ray H2 ion. rate | ζ CR | 5 × 10-17 s-1 |
| strength of interst. FUV | χ ISM | 1b |
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| distance | d | 200 pc |
Notes.
(a)
Optical constants are from Dorschner et al. (1995) and Zubko et al. (1996, BE-sample); resulting dust material density ρdp ≈ 2.2 g:cm-3.
(b)
χISM is given in units of the Draine field (Draine & Bertoldi 1996; Woitke et al. 2009).
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