Free Access

Fig. 2


Optical flux in the V band, degree of the optical linear polarization and electric-vector position angle versus time (first, second and third plots respectively) measured at the Steward Observatory, and (fourth plot) the VHE light curve obtained with Whipple and VERITAS.

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.