The nuclei of most normal galaxies contain supermassive black holes, which can accrete
gas through a disk and become active. These active galactic nuclei (AGNs) can form jets that …

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 …

We analyze the parsec-scale jet kinematics from 2007 June to 2018 December of a sample
of γ-ray bright blazars monitored roughly monthly with the Very Long Baseline Array (VLBA) …

We analyze the parsec-scale jet kinematics from 2007 June to 2013 January of a sample of
γ-ray bright blazars monitored roughly monthly with the Very Long Baseline Array at 43 GHz …

Magnetic reconnection in relativistic collisionless plasmas can accelerate particles and
power high-energy emission in various astrophysical systems. Whereas most previous …

Theoretical models for the production of relativistic jets from active galactic nuclei predict that
jet power arises from the spin and mass of the central supermassive black hole, as well as …

Powerful flares from blazars with short (∼ min) variability time-scales are challenging for
current models of blazar emission. Here, we present a physically motivated ab initio model …

ABSTRACT On 2015 June 16, Fermi-LAT observed a giant outburst from the flat spectrum
radio quasar 3C 279 with a peak> 100 MeV flux of∼ 3.6× 10− 5 photons cm− 2 s− 1 …

We report the results of a multiband observing campaign on the famous blazar 3C 279
conducted during a phase of increased activity from 2013 December to 2014 April, including …

Supermassive black holes lying in the center of galaxies can launch relativistic jets of
plasma along their polar axis. The physics of black-hole jets is a very active research topic in …