Open Access
Table 1.
Fractional variability in each filter of Mrk 421 and Mrk 501.
| Filter | Mrk 421 | Mrk 501 |
|---|---|---|
| V | 0.257 | 0.044 |
| B | – | 0.075 |
| U | 0.335 | 0.109 |
| UV | 0.403 | 0.143 |
| X-ray | 0.737 | 0.615 |
Notes. The errors are of the order of 0.001% or less.
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.