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Galaxies 2017, 5(3), 50; doi:10.3390/galaxies5030050

Knots in Relativistic Transverse Stratified Jets

1
LUTH, Observatoire de Paris, PSL Research University, CNRS, Université Paris Diderot, Sorbonne Paris Cité, 5 place Jules Janssen, 92195 Meudon, France
2
Santa Cruz Institute for Particle Physics and Department of Physics, University of California at Santa Cruz, Santa Cruz, CA 95064, USA
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editors: Markus Boettcher, Emmanouil Angelakis and Jose L. Gómez
Received: 16 July 2017 / Revised: 1 August 2017 / Accepted: 21 August 2017 / Published: 5 September 2017
(This article belongs to the Special Issue Polarised Emission from Astrophysical Jets)
View Full-Text   |   Download PDF [763 KB, uploaded 5 September 2017]   |  

Abstract

We investigate the plasmoid knot formation in stratified relativistic jet by means of relativistic magneto-hydrodynamics simulations. Indeed, astrophysical jets in active galactic nuclei (AGN) seem to be transversely stratified, with a fast inner jet and a slower outer jet. It is likely that the launching mechanism for each component is different. On the other hand, the steady and moving knots’ properties are observed along these jets. With the proposed model, we were able to link the different types of observed knot in various radio loud AGN with specific stratified jet characteristics. We showed that the increase energy flux at the outer edge of the jet induces a steady knot near the core and a moving knot at a greater distance. View Full-Text
Keywords: AGN; relativistic jet; magnetohydrodynamics simulation. AGN; relativistic jet; magnetohydrodynamics simulation.
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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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Meliani, Z.; Hervet, O. Knots in Relativistic Transverse Stratified Jets. Galaxies 2017, 5, 50.

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