Free Access

Fig. 1.


Reproduction of the ALMA line spectrum as presented by Greaves et al. (2020), with the original and the reproduction in the left- and right-hand panels, respectively. This is after a 12th-order polynomial is removed from the spectral baseline. The reproduced spectrum is artificially scaled down by a factor of 12.8/16.1 to account for the different continuum brightnesses used in the studies. In the reproduction, the line feature shows a small velocity offset and the spectral baseline is somewhat noisy, but the overall S/N of the two features is similar.

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.