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Table 1
Frequently used notations.
| Quantity | Description | Reference |
|---|---|---|
| ν | Kinematic viscosity | ν = αvisccsHg |
| Hg, Hd | Vertical scale heights of gas and dust | |
| tstop | Stopping time | See Eq. (8) |
| ρs | Material density of dust | ρs = 3 g cm−3 |
| St | Stokes number | St = tstopΩ |
| amin | Minimal size of small dust | amin = 5 × 10−7 cm |
| a* | Small and grown dust borderline | a* = 10−4 cm |
| amax | Maximal size of grown dust | See Eq. (9) |
 |
Collisional growth rate | See Eq. (10) |
| afrag | Fragmentational barrier | See Eq. (12) |
| vfrag | Fragmentation velocity | See Eq. (13) |
| p | Slope of the grain size distribution | p = 3.5 |
| αvisc | Viscosity parameter | αvisc = 10−2 and Eq. (26) |
| ζd2g | Dust-to-gas mass ratio | ζd2g = Σd,tot∕Σg |
| κν | Opacity coefficient | cm2 g−1 |
 |
Spectral index | See Eq. (24) |
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