Free Access

Fig. 3

thumbnail

Integrated line flux of the 312 − 211 line of H2CO vs that of the 313 − 212 transition. Color codes indicate detected vs. non-detected lines: blue for detection of both lines, black for detection of the 313 − 212 line, green for non detections. The detection threshold is set at 4σ. For detected lines, the errorbars are 1σ. For non-detected lines, the limit is the 2σ value, and the arrow length is 1σ. Sources in italics are those with known molecular outflows.

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.