This article gives a brief historical introduction and reviews our current understanding of jets
in radio galaxies and quasars from an observational perspective, with an emphasis on …

The magnetic field is ubiquitous in the universe. Though it plays an essential role in various
astrophysical phenomena, its real origin and evolution are poorly known. This article …

Blazars are a class of jet-dominated active galactic nuclei with a typical double-humped
spectral energy distribution. It is of common consensus that the synchrotron emission is …

We study Faraday rotation in the jet of M87 inside the Bondi radius using eight Very Long
Baseline Array data sets, one at 8 GHz, four at 5 GHz, and three at 2 GHz. We obtain …

We analysed the parsec-scale linear polarization properties of 436 active galactic nuclei
(AGNs) based on 15 GHz polarimetric Very Long Baseline Array observations. We present …

We present unprecedented high-fidelity radio images of the M87 jet. We analyzed Jansky
Very Large Array broadband full-polarization radio data from 4 to 18 GHz. The observations …

We report on the first results of the POLAMI (Polarimetric Monitoring of AGNs with Millimetre
Wavelengths) programme, a simultaneous 3.5 and 1.3 mm full-Stokes-polarization …

We perform polarimetry analysis of 20 active galactic nuclei jets using the very long baseline
array at 1.4, 1.6, 2.2, 2.4, 4.6, 5.0, 8.1, 8.4 and 15.4 GHz. The study allowed us to investigate …

Using stacking of images obtained at different epochs, we studied the variability properties
of linear polarization of active galactic nucleus (AGN) jets on parsec-scales. Our sample is …

We present relativistic magnetohydrodynamic (RMHD) simulations of stationary
overpressured magnetized relativistic jets, which are characterized by their dominant type of …