Free Access

Fig. 5


Comparison of the relative radial velocities between the HC3N (2–1) and NH3 (1, 1) lines measured at the same coordinates in Feb. 2009 (filled circles) and in Jan. 2010 (open circles). The 2009 data are corrected by 4 m s-1 as described in Sect. 1. For L1517B the offset (Δα,Δδ)2010 = (15′′,15′′) corresponds to the offset (Δα,Δδ)2009 = (0′′,0′′). The mean value is depicted for multiple observations at the same coordinate. The error bars show the 1σ uncertainties.

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.