Free Access

Fig. 2

image

Energy level diagrams of OH and H2O (ortho and para). Blue arrows indicate lines observed with PACS and green arrows denote lines observed with SPIRE.

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.