Microscopic processes in global relativistic jets containing helical magnetic fields: dependence on jet radius

Simple item page
dc.contributor.authorNishikawa, Ken-Ichi
dc.contributor.authorMizuno, Yosuke
dc.contributor.authorGómez, Jose L.
dc.contributor.authorDuţan, Ioana
dc.contributor.authorMeli, Athina
dc.contributor.authorWhite, Charley
dc.contributor.authorNiemiec, Jacek
dc.contributor.authorKobzar, Oleh
dc.contributor.authorPohl, Martin
dc.contributor.authorPe'er, Asaf
dc.contributor.authorFrederiksen, Jacob Trier
dc.contributor.authorNordlund, Åke
dc.contributor.authorSol, Helene
dc.contributor.authorHardee, Philip E.
dc.contributor.authorHartmann, Dieter H.
dc.contributor.funderSeventh Framework Programme
dc.contributor.funderNarodowe Centrum Nauki
dc.contributor.funderDeutsche Forschungsgemeinschaft
dc.contributor.funderEuropean Research Council
dc.contributor.funderNational Science Foundation
dc.date.accessioned2018-06-15T11:47:16Z
dc.date.available2018-06-15T11:47:16Z
dc.date.issued2017
dc.description.abstractIn this study, we investigate the interaction of jets with their environment at a microscopic level, which is a key open question in the study of relativistic jets. Using small simulation systems during past research, we initially studied the evolution of both electron-proton and electron-positron relativistic jets containing helical magnetic fields, by focusing on their interactions with an ambient plasma. Here, using larger jet radii, we have performed simulations of global jets containing helical magnetic fields in order to examine how helical magnetic fields affect kinetic instabilities, such as the Weibel instability, the kinetic Kelvin-Helmholtz instability (kKHI) and the mushroom instability (MI). We found that the evolution of global jets strongly depends on the size of the jet radius. For example, phase bunching of jet electrons, in particular in the electron-proton jet, is mixed with a larger jet radius as a result of the more complicated structures of magnetic fields with excited kinetic instabilities. In our simulation, these kinetic instabilities led to new types of instabilities in global jets. In the electron-proton jet simulation, a modified recollimation occurred, and jet electrons were strongly perturbed. In the electron-positron jet simulation, mixed kinetic instabilities occurred early, followed by a turbulence-like structure. Simulations using much larger (and longer) systems are required in order to further thoroughly investigate the evolution of global jets containing helical magnetic fields.en
dc.description.sponsorshipNational Science Foundation (AST-0908010, AST-0908040; NASA-NNX09AD16G; NNX12AH06G; NNX13AP-21G; NNX13AP14G; PHY05-51164); Deutsche Forschungsgemeinschaft (PO 1508/1-2)en
dc.description.statusPeer reviewed
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid58
dc.identifier.citationNishikawa, K.-I., Mizuno, Y., Gómez, J., Duţan, I., Meli, A., White, C., Niemiec, J., Kobzar, O., Pohl, M., Pe’er, A., Frederiksen, J., Nordlund, Å., Sol, H., Hardee, P. and Hartmann, D. (2017) 'Microscopic processes in global relativistic jets containing helical magnetic fields: dependence on jet radius', Galaxies, 5(4), 58 (7pp). doi: 10.3390/galaxies5040058en
dc.identifier.doi10.3390/galaxies5040058
dc.identifier.endpage7
dc.identifier.issn2075-4434
dc.identifier.issued4
dc.identifier.journaltitleGalaxiesen
dc.identifier.startpage1
dc.identifier.urihttps://hdl.handle.net/10468/6345
dc.identifier.volume5
dc.language.isoenen
dc.publisherMDPI AGen
dc.relation.projectinfo:eu-repo/grantAgreement/EC/FP7::SP2::ERC/610058/EU/Imaging the Event Horizon of Black Holes/BLACKHOLECAM
dc.relation.urihttp://www.mdpi.com/2075-4434/5/4/58
dc.rights© 2018, the Authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectRelativistic jetsen
dc.subjectParticle-in-cell simulationsen
dc.subjectGlobal jetsen
dc.subjectHelical magnetic fieldsen
dc.subjectKinetic instabilitiesen
dc.subjectKink-like instabilityen
dc.subjectRecollimation shocksen
dc.subjectPolarized radiationen
dc.titleMicroscopic processes in global relativistic jets containing helical magnetic fields: dependence on jet radiusen
dc.typeArticle (peer-reviewed)en
Files
Original bundle
Now showing 1 - 2 of 2
Thumbnail Image
Name:
Microscopic Processes in Global Relativistic Jets.pdf
Size:
6.98 MB
Format:
Adobe Portable Document Format
Description:
Published Version
Download
Thumbnail Image
Name:
Microscopic Processes in Global Relativistic Jets-1.pdf
Size:
8.11 MB
Format:
Adobe Portable Document Format
Description:
Supplemental File 1
Download
Collections
Physics - Journal Articles