Free Access
Fig. C.1

Disk-averaged HNC and HCN line ratio for the T Tauri and Herbig star models and for both transitions. The uncertainties are given by the changes in the vertical disk structure. Observations of TW Hya and HD 163296 are marked for comparison (Graninger et al. 2015).
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.