Open Access
Table 3
LkCa 15 best-fit model parameters.
| Parameter | Symbol | Value |
|---|---|---|
| Dust sublimation radius | Rsubl (AU) | 0.08 |
| Outer grid radius | Rout (AU) | 1000 |
| Characteristic scale height | hc | 0.08 |
| Flaring index | ψ | 0.075 |
| Characteristic radius | Rc (AU) | 85 |
| Density power law coefficient | γ | 1.4 |
| Settling parameter | χ | 0.2 |
| Mass fraction large grains | fℓ | 0.98 |
| Gas surface density | Σc (g cm−2) | 2.7 |
| Total gas mass | Mg (Μ⊙) | 1.2e-2 |
| Gas-to-dust ratio | gdr | 15 |
| Total dust mass | Md (Μ⊙) | 5.8e−4 |
| Dust gap radius | Rgap,d (AU) | 35 |
| Dust gap depth | δd | 2e−4 |
| Gas gap radius | Rgap,g (AU) | 15 |
| Gas gap depth | δg | le−4 |
| Cavity radius | Rcav (AU) | 63 |
| Dust cavity depth | δcav,d | le−4 |
| Gas cavity depth | δcav,g | 3e−2 |
| Ring 1 | Rring1 (AU) | 63−78 |
| Scaling in ring 1 | δr1 | 3 |
| Ring 2 | Rring2 (AU) | 96−112 |
| Scaling in ring 2 | δr2 | 4 |
| X-ray luminosity | LX (erg s−1) | le30 |
| X-ray temperature | TX(K) | 7e7 |
| Cosmic ray ionization rate | ζ (s−1) | 5e−17 |
| Carbon abundance | C/H | 3.4e−5 |
| Oxygen abundance | O/H | 3.4e−5 |
| C/O ratio | C/O | 1 |
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.