Fig. A.1.
Download original image
Correlations between energy bands for Mrk 421 (top) and Mrk 501 (bottom), where r is the Pearson correlation coefficient. There are strong correlations within the optical and UV bands. If considering the entire period there are no correlations between the optical/UV and X-ray bands, but some do appear when the X-rays are divided into hard and soft states.
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.