Intraday variability of the polarization vector in AGN S5 0716+714

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 8-h polarimetric monitoring of S5 0716+714 with a $\sim 70$-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 the helical structure of the magnetic field is suggested, and fitting the model reveals a magnetic field precession with a period of about 15 days.

arXiv commentProceeding to the XII SCSLSA; published in CAOSP Special Issuie

References in corpus (8)

• Probing the Inner Jet of the Quasar PKS 1510-089 with Multi-waveband Monitoring during Strong Gamma-ray Activity
• The HST Survey of BL Lacertae Objects. II. Host Galaxies
• The 400 square degrees ROSAT PSPC galaxy cluster survey: Catalog and statistical calibration
• The Bright SHARC Survey: The Cluster Catalog
• Detection of the host galaxy of S5 0716+714
• Short Timescale Photometric and Polarimetric Behavior of two BL Lacertae Type Objects
• The intraday variations of polarization vector direction in radio source S5 0716+714
• SCORPIO-2 Guiding and Calibration System in the Prime Focus of the 6-m Telescope

Cited by in corpus (1)

• Optical Monitoring and Long-term Optical Spectral Variability of BL Lacertae Object S5 0716+714