Fig. 1.
Colour image of EXT8 produced from the F300X, F606W, and F814W HST/WFC3 images. The figure shows a 40″ × 40″ subsection of the full WFC3 field of view, or about 152 pc × 152 pc at the assumed distance of M 31. North is up and east to the left. The large red circle marks the brightest RGB star (Sect. 4.1.4), the small cyan circles mark the UV-bright stars discussed in Sect. 4.2.2, and the medium-sized green circles mark two RR Lyrae candidates (Sect. 4.2.3).
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.