Free Access

Fig. 4


Physical structure of the best-fit model describing Sz 71. Left: gas surface density profile computed as 100 × Σd(R), where 100 is the gas-to-dust ratio. The solid red line is the cumulative mass (right y axis) and the black filled circle highlights the cut-off radius Rc ≃ 85 au. In all three plots, the dotted red line indicates the radius containing 95% of mass and the vertical dashed black line half the synthesized beam size (25 ) au. Middle: dust temperature profile Tmid(R) derived self-consistently at each radius from the disk model. The dot-dashed horizontal line represents the mass-averaged dust temperature Tmid, which for Sz 71 is 14 K. Right: optical depth of the disk midplane at the observing wavelength: the sub-mm continuum emission is expected to be optically thick only within R < 2 au.

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.