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Galaxies 2017, 5(4), 79; doi:10.3390/galaxies5040079

Synchrotron Radiation Maps from Relativistic MHD Jet Simulations

1
Centre for mathematical Plasma Astrophysics, Department of Mathematics, KU Leuven, 3001 Leuven, Belgium
2
Institut für Theoretische Physik, Goethe Universiteit Frankfurt, 60438 Frankfurt am Main, Germany
*
Author to whom correspondence should be addressed.
Received: 15 September 2017 / Revised: 8 November 2017 / Accepted: 10 November 2017 / Published: 15 November 2017
(This article belongs to the Special Issue Polarised Emission from Astrophysical Jets)
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Abstract

Relativistic jets from active galactic nuclei (AGN) often display a non-uniform structure and are, under certain conditions, susceptible to a number of instabilities. An interesting example is the development of non-axisymmetric, Rayleigh-Taylor type instabilities in the case of differentially rotating two-component jets, with the toroidal component of the magnetic field playing a key role in the development or suppression of these instabilities. We have shown that higher magnetization leads to stability against these non-axisymmetric instabilities. Using ray-casting on data from relativistic MHD simulations of two-component jets, we now investigate the effect of these instabilities on the synchrotron emission pattern from the jets. We recover many well known trends from actual observations, e.g., regarding the polarization fraction and the distribution of the position angle of the electric field, in addition to a different emitting region, depending on the stability of the jet. View Full-Text
Keywords: simulations; instabilities; AGN jets; synchrotron emission; polarization simulations; instabilities; AGN jets; synchrotron emission; polarization
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Millas, D.; Porth, O.; Keppens, R. Synchrotron Radiation Maps from Relativistic MHD Jet Simulations. Galaxies 2017, 5, 79.

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