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3D-MHD simulations of the evolution of magnetic fields in FR II radio sources

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contributor authorHuarte-Espinosa, M.
contributor authorKrause, M.
contributor authorAlexander, P.
date accessioned2017-04-20T16:00:50Z
date available2017-04-20T16:00:50Z
date issued2010-09-01
identifier citationHuarte-Espinosa , M , Krause , M & Alexander , P 2010 , ' 3D-MHD simulations of the evolution of magnetic fields in FR II radio sources ' Proceedings of the International Astronomical Union , vol 6 , no. S275 , pp. 170-171 . DOI: 10.1017/S1743921310015899en
identifier issn1743-9213
identifier otherPURE: 10547262
identifier otherPURE UUID: 31447c4f-e035-49f4-9abf-6d2b4baad87e
identifier otherBibtex: urn:7c554e7f9288e73c4c5dc1b1b9f91cf8
identifier urihttp://hdl.handle.net/2299/17998
descriptionMartin Huarte-Espinoza, Martin Krause, and Paul Alexander, '3D-MHD simulations of the evolution of magnetic fields in FR II radio sources', Proceedings of the International Astronomical Union, Vol. 6 (S275), September 2010, pp. 170-171, available online at DOI: https://doi.org/10.1017/S1743921310015899. COPYRIGHT: © International Astronomical Union 2011en
description abstract3D-MHD numerical simulations of bipolar, hypersonic, weakly magnetized jets and synthetic synchrotron observations are presented to study the structure and evolution of magnetic fields in FR II radio sources. The magnetic field setup in the jet is initially random. The power of the jets as well as the observational viewing angle are investigated. We find that synthetic polarization maps agree with observations and show that magnetic fields inside the sources are shaped by the jets' backflow. Polarimetry statistics correlates with time, the viewing angle and the jet-to-ambient density contrast. The magnetic structure inside thin elongated sources is more uniform than for ones with fatter cocoons. Jets increase the magnetic energy in cocoons, in proportion to the jet velocity. Both, filaments in synthetic emission maps and 3D magnetic power spectra suggest that turbulence develops in evolved sources.en
language isoeng
relation ispartofProceedings of the International Astronomical Unionen
rightsen
subjectgalaxies: activeen
subjectjetsen
subjectmethods: numericalen
subjectpolarizationen
subjectMHDen
title3D-MHD simulations of the evolution of magnetic fields in FR II radio sourcesen
typeArticleen
contributor institutionSchool of Physics, Astronomy and Mathematicsen
contributor institutionCentre for Astrophysics Researchen
identifier doihttp://dx.doi.org/10.1017/S1743921310015899
description statusNon peer revieweden


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