Fig. 1

OH transitions accessible with Herschel-PACS. Wavelengths are given in units of microns. Transitions that were observed for the entire source sample are shown in red. Transitions targeted only in the fraction of sources observed in range scan mode are depicted in blue if detected from at least one source and in gray if undetected.
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.