CAOSP abstracts, Volume: 50, No.: 1, year: 2020

Author(s): Shablovinskaya, E.; Afanasiev, V.
Journal: Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 50, no. 1, p. 341-349.
Date: 1/2020
Title: Intraday variability of the polarization vector in AGN S5 0716+714
Keyword(s): BL Lacertae objects: individual: S5 0716+714, polarization, galaxies: jets, galaxies: distances and redshifts
Pages: 341 -- 349
DOI: https://doi.org/10.31577/caosp.2020.50.1.341
NASA ADS Abstract Service: 2020CoSka..50..341S
Citation:
License: This work is licensed under a Creative Commons Attribution 4.0 International License

Abstract: The bright radio source S5 0716+714, which is usually classified as a BL Lac object, is one of the most intensively studied blazar. S5 0716+714 demonstrates extremely peculiar properties, such as the shortest time-scale of optical and polarimetric variations observed in blazars. In the given talk, we present the results of a 8-h polarimetric monitoring of S5 0716+714 with a ∼70-sec resolution carried out using the 6-m telescope BTA of the SAO RAS. The observation data analysis reveals the variability both in total and polarized light on the 1.5-hour timescales that specifies the size of the unresolved emitting region. The numerical model of polarization in jet with helical structure of magnetic field is suggested, and fitting the model reveals a magnetic field precession with a period of about 15 days.