We present, for the first time, the structure of the axisymmetric force-free magnetosphere of
an aligned rotating magnetic dipole, in the case in which there exists a sufficiently large …

We present numerical simulations of axisymmetric, magnetically driven relativistic jets. Our
special-relativistic, ideal-magnetohydrodynamics numerical scheme is specifically designed …

We present numerical simulations of axisymmetric, magnetically driven outflows that
reproduce the inferred properties of ultrarelativistic gamma-ray burst (GRB) jets. These …

There is growing evidence that relativistic jets in active galactic nuclei undergo extended
(parsec-scale) acceleration. We argue that, contrary to some suggestions in the literature …

We present a general formulation of special relativistic magnetohydrodynamics and derive
exact radially self-similar solutions for axisymmetric outflows from strongly magnetized …

General relativistic numerical simulations of magnetized accretion flows around black holes
show a disordered electromagnetic structure in the disc and corona and a highly relativistic …

A large energy-dependent X-ray polarization degree is detected by the Imaging X-ray
Polarimetry Explorer (IXPE) in the high-soft emission state of the black hole X-ray binary 4U …

The goal of this paper is to derive signatures of synchrotron radiation from state-of-the-art
simulation models of collimating relativistic magnetohydrodynamic (MHD) jets featuring a …

We present a detailed analysis of time-and energy-dependent synchrotron polarization
signatures in a shock-in-jet model for γ-ray blazars. Our calculations employ a full three …

Magnetic fields are fundamental to the dynamics of both accretion disks and the jets that
they often drive. We review the basic physics of these phenomena, the past and current …