OH absorption of the OH-streamer head at 1667 MHz, observed with the VLA in BnA configuration at an angular resolution of (Karlsson et al. 2003) overlaid on the 18 cm continuum. We note the location of the central parts of Sgr A West in dark shades of grey. Sgr A∗ is labelled with a plus sign, and each panel covers a region of about . The lowest contour level corresponds to about 4σ, and the velocity is given in the left-hand lower corner in each panel. Note the winglike appearance of the head, marked by an arrow, and its anti-clockwise rotation as the velocity decreases from 50 to 24 km s-1.
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.