Multifrequency Variability of Blazars 3C 279 and 3C 345

Multiwavelength Variability Analysis of 3C 279

Max-Planck-Institut für Radioastronomie, Bonn, Germany, Department of Physics and Astronomy, University of Texas at San Antonio, San Antonio, TX, United States, 3 Instituto Nacional de Astrofísica Óptica y Electrónica, Puebla, Mexico, 4 SOFIA Science Center, NASA Ames Center, Mountain View, CA, United States, Centre for Remote Sensing and Earth Observation Processes (TAP), Flemish Institute for...

Time Variable Faraday Rotation Measures of 3c 273 & 3c 279

Multifrequency polarimetry with the VLBA confirms the previously reported timevarying Faraday rotation measure (RM) in the quasar 3C 279. Variability in the RM and electric vector position angle (EVPA) of the jet component (C4) is seen making it an unreliable absolute EVPA calibrator. 3C 273 is also shown to vary its RM structure on 1.5 year time-scales. Variation in the RM properties of quasar...

Vlba Monitoring of the Qso 3c 345

MAGIC observations and multifrequency properties of the flat spectrum radio quasar 3C 279 in 2011

Aims. We study the multifrequency emission and spectral properties of the quasar 3C 279 aimed at identifying the radiation processes taking place in the source. Methods. We observed 3C 279 in very-high-energy (VHE, E > 100 GeV) γ-rays, with the MAGIC telescopes during 2011, for the first time in stereoscopic mode. We combined these measurements with observations at other energy bands: in high-e...

Full Polarization Spectra of 3c 279

We report the results of parsec-scale, multi-frequency VLBA observations of the core region of 3C 279 in Stokes I, linear polarization, and circular polarization. These full polarization spectra are modeled by radiative transfer simulations to constrain the magnetic field and particle properties of the parsec-scale jet in 3C 279. We find that the polarization properties of the core region, incl...