Free Access
Fig. A.2.
Spectral index between 211–275 GHz, blanked where errors are > 0.2. Contours at 6 and 96 × σrms, the inner contour corresponding approximately to a 56-mas diameter disc. This is in the typical spectral index range for AGB stars in general in the mm regime (Vlemmings et al. 2019).
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.