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Fig. 3

Total 13CO column density integrated at each position, displayed with a logarithmic intensity scale. The H2 column density is roughly a factor of 106 greater.
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.
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