Free Access
Table 1
Parameters of the transition disk models.
| Parameter | Range |
|
|
|
| Physical structure | |
| γ | 1† |
| ψ | 0.2 |
| h c | 0.06 rad |
| Σc | 17 g cm-2 |
| R c | 25, 50, 100 AU |
| R cav | 45 AU |
| R subl |  AU† |
| R gap | 10 AU |
| Δgas − dust | 0.01† |
| δ gas | 10-6,10-5,10-4,10-3,10-2,10-1,1 |
| δ dust | 10-10 (no dusty inner disk), |
| 10-5 (with dusty inner disk) | |
| f | 0.85† |
| χ | 0.2† |
| Stellar spectrum | |
| T eff | 6000, 10 000 K |
| L bol | 1, 3, 10 L⊙ |
| L X | 1027, 1030 erg s-1 |
| Dust properties | |
| Dust | 0.005−1 μm (small) |
| 0.005−1000 μm (large) | |
| PAHs | 0.1, 1.0, 10% w.r.t. ISM abundanceb |
| Gas elemental compositiona | |
| H | 1 |
| He | 7.59(−2) |
| C | 1.35(−4) |
| N | 2.14(−5) |
| O | 2.88(−4) |
| Mg | 4.17(−6) |
| Si | 7.94(−6) |
| S | 1.91(−6) |
| Fe | 4.27(−6) |
Notes.Parameters of a representative model are given in bold. a(b) means a × 10b.
(†)
Fixed, see Andrews et al. (2011).
(b)
See Sect. 2.1.2.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.