When astrophysical jets were discovered one hundred years ago, the field of numerical
simulations did not yet exit. Since the arrival of programmable computers though, numerical …

Relativistic jets of active galactic nuclei have been known to exist for 100 years. Blazars with
their jet pointing close to our line of sight are some of the most variable and extreme objects …

ABSTRACT OJ287 is the best candidate active galactic nucleus (AGN) for hosting a
supermassive binary black hole (SMBBH) at very close separation. We present 120 Very …

In this paper, we give a detailed account of the first three-dimensional (3D) relativistic
magnetohydrodynamic simulations of pulsar wind nebulae, with parameters most suitable …

We present the first polarimetric space very long baseline interferometry (VLBI) imaging
observations at 22 GHz. BL Lacertae was observed in 2013 November 10 with the …

We describe a new hybrid framework to model non-thermal spectral signatures from highly
energetic particles embedded in a large-scale classical or relativistic magnetohydrodynamic …

Observational studies of collimation in jets in active galactic nuclei (AGN) are a key to
understanding their formation and acceleration processes. We have performed an …

Context. The galaxy M 87 harbors a kiloparsec-scale relativistic jet, whose origin coincides
with a compact source thought to be a supermassive black hole. Observational millimeter …

We present the first very long baseline interferometric (VLBI) observations of the blazar OJ
287 carried out jointly with the Global Millimeter VLBI Array (GMVA) and the phased …

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 …