Free Access

Fig. 2


Left panel: Spitzer-IRAC 8 μm emission map (gray scale) overlayed on Class I and Class II sources labeled as the blue and red dots, respectively. The unit of the gray bar is in MJy sr-1. Right panel: distributed map of Class I and Class II sources in the vicinity of H II region G53.54-0.01. Two green dashed ellipses mark the concentration of Class I and Class II sources.

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.