학술논문

Radiative Signatures of Parsec-Scale Magnetised Jets
Document Type
article
Source
Galaxies, Vol 5, Iss 4, p 73 (2017)
Subject
relativistic jets
special relativistic magneto-hydrodynamics
non-thermal emission
VLBI
Astronomy
QB1-991
Language
English
ISSN
2075-4434
Abstract
Relativistic jets are launched from the immediate vicinity of black holes and can reach kilo-parsec scales. During their evolution from the smallest to the largest scales, they encounter different physical conditions (e.g., ambient configurations and magnetic fields) which can modify their morphology and dynamics. Using state-of-the-art relativistic magneto-hydrodynamical simulations and ray-tracing algorithms, we model the dynamics of jets along with their radiation microphysics, investigating the impact of magnetisation on the jet dynamics and the observed emission. During the post-processing procedure we account for the properties of the observing array (sparse uv-plane) and the imaging algorithm, enabling a more direct comparison between simulations and ground-or space-based very-long-baseline interferometry (VLBI) observations. The different jet models can be distinguished from the reconstructed radio images.