The blazar BL Lac reaches historical maximum
ATel #13930; T. S. Grishina, V. M. Larionov (St. Petersburg University)
on 10 Aug 2020; 10:10 UT
Credential Certification: V. Larionov (vlar@astro.spbu.ru)
Subjects: Optical, AGN, Blazar
Referred to by ATel #: 13933, 13956, 13958, 13963, 13964, 14032, 14081, 14318, 14334, 14356, 14548, 14751
We perform optical photometric and polarimetric monitoring of a sample of gamma-bright blazars using 0.7-m AZT-8 telescope (Crimean Astrophysical Observatory), within the frames of GASP/WEBT project. We report that the blazar BL Lac reached R=12.33 in the night of 2020 August 09, TJD 59071.30. It has thus reached the highest historical maximum observed in 2013 November, see ATel#5597. R band light curve for BL Lac can be seen on our web-page. The polarization degree during last nights varies between 1 and 16%. Current high activity state of this prototypical blazar deserves close attention in all wavelengths.
