Free Access

Fig. 4

thumbnail

Chandra ACIS-I spectrum for the diffuse emission from G20.0-0.2. The solid line is the best-fit absorbed power-law model with a hydrogen column density fixed at 4 × 1022 cm-2.

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.