E. E. Nokhrina

TL;DR: In this paper, the authors considered the problem of particle acceleration for a paraboloidal poloidal magnetic field with steady axisymmetric magnetohydrodynamic (MHD) flow and showed that for the large Michel magnetization parameter σ it is possible to linearize the stream equation near the force-free solution.

TL;DR: In this article, the authors performed an automated search for jet shape transitions in a sample of 367 active galactic nuclei (AGN) using VLBA data at 15 GHz and 1.4 GHz with a transition from a parabolic to conical shape, while the full analyzed sample is dominated by distant AGN with a typical z about 1.07.

TL;DR: In this article, the structure of highly magnetized astrophysical jets at the origin in a region where the flow has been already collimated by an external medium, in both relativistic and non-relativistic regimes, is analyzed by solving a system of first-order ordinary differential equations that describe the transversal jet structure for a variety of external confining pressure profiles that collimate the jet to a nearcylindrical configuration.

TL;DR: In this article, the authors proposed a new method of estimating the mass of a supermassive black hole residing in the centre of an active galaxy by coupling the unique set of observations available for the jet kinematics, environment and boundary profile with their MHD modelling under assumption on the presence of a dynamically important magnetic field in the M87 jet.

TL;DR: In this article, the connection between external gas pressure and internal structure of a relativistic jet is determined, in which both the magnetic field and the flow velocity vanish at the jet boundary.