Free Access

Fig. 3

image

Histogram of the noise level in the Fourier spectrum of the EHB lightcurves extracted from the EFOSC2 fields (non-filled area) and from the ULTRACAM field (red hashed area). The vast majority of the ULTRACAM targets have noise levels below 0.6% of the mean brightness of the star, while for the EFOSC2 fields there are several outliers where the quality of the light curve is low. Note that the noise level of the ULTRACAM data was measured in the u-band, while for the EFOSC2 data it is based on the B-band.

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.