Visibility amplitudes vs. u–v distances for Elias29 at both 1.1 and 3 mm. The orange line is our best fit of the data, obtained with a 2 M⊙ envelope, where grains have already grown up to mm size. The green line represents a model obtained with a 1.1 M⊙ envelope, with grains up to the micrometer size, in order to reproduce the 1.1 mm observations. It fails, however, to reproduce the 3 mm data. This shows that only the presence of already grown grains can give the dust an opacity able to reproduce the dual-frequency observations.
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.