Fig. 1

A 12.5′′ × 12.5′′ portion of the composite F814W image of the M 87 halo, demonstrating its resolution into stars. Three globular clusters are seen in the lower half of the picture. This section is located in the extreme southeast corner of the ACS field, ≃150′′ or 12.1 kpc from the center of M 87. Stellar crowding increases rapidly toward the galaxy center but is manageable at this location.
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.