Free Access

Fig. 9

image

Download original image

Sketch of the emission from methanol and dust in the disk and envelope of the envelope-plus-disk model to emphasise the effects of dust optical depth on the disk and the envelope. In the envelope, the dust can block the methanol emission, whereas in the disk, the dust optical depth causes an error due to continuum over-subtraction although methanol is in front of the dust.

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.