Microscopic processes in global relativistic jets containing helical magnetic fields

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dc.contributor.authorNishikawa, Ken-Ichi
dc.contributor.authorMizuno, Yosuke
dc.contributor.authorNiemiec, Jacek
dc.contributor.authorKobzar, Oleh
dc.contributor.authorPohl, Martin
dc.contributor.authorGómez, Jose L.
dc.contributor.authorDuţan, Ioana
dc.contributor.authorPe’er, Asaf
dc.contributor.authorFrederiksen, Jacob Trier
dc.contributor.authorNordlund, Åke
dc.contributor.authorMeli, Athina
dc.contributor.authorSol, Helene
dc.contributor.authorHardee, Philip E.
dc.contributor.authorHartmann, Dieter H.
dc.contributor.funderNational Science Foundationen
dc.contributor.funderNarodowe Centrum Naukien
dc.contributor.funderEuropean Research Councilen
dc.contributor.funderDeutsche Forschungsgemeinschaften
dc.contributor.funderNational Aeronautics and Space Administrationen
dc.date.accessioned2016-10-20T09:04:11Z
dc.date.available2016-10-20T09:04:11Z
dc.date.issued2016-09-29
dc.description.abstractIn the study of relativistic jets one of the key open questions is their interaction with the environment on the microscopic level. Here, we study the initial evolution of both electron–proton (e−–p+) and electron–positron (e±) relativistic jets containing helical magnetic fields, focusing on their interaction with an ambient plasma. 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). In our initial simulation study these kinetic instabilities are suppressed and new types of instabilities can grow. In the e−–p+ jet simulation a recollimation-like instability occurs and jet electrons are strongly perturbed. In the e± jet simulation a recollimation-like instability occurs at early times followed by a kinetic instability and the general structure is similar to a simulation without helical magnetic field. Simulations using much larger systems are required in order to thoroughly follow the evolution of global jets containing helical magnetic fields.en
dc.description.sponsorshipNational Science Foundation (AST-0908010; AST-0908040; Grant No. PHY05-51164); National Aeronautics and Space Administration (NNX09AD16G; NNX12AH06G; NNX13AP-21G; NNX13AP14G); Narodowe Centrum Nauki (Research Project DEC-2013/10/E/ST9/00662); Deutsche Forschungsgemeinschaft (Grant PO 1508/1-2)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid38
dc.identifier.citationNishikawa, K.I., Mizuno, Y., Niemiec, J., Kobzar, O., Pohl, M., Gómez, J.L., Duţan, I., Pe’er, A., Frederiksen, J.T., Nordlund, Å. and Meli, A. (2016) 'Microscopic processes in global relativistic jets containing helical magnetic fields', Galaxies, 4(4), 38 (9pp). doi: 10.3390/galaxies4040038en
dc.identifier.doi10.3390/galaxies4040038
dc.identifier.endpage9en
dc.identifier.issn2075-4434
dc.identifier.issued4en
dc.identifier.journaltitleGalaxiesen
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/3194
dc.identifier.volume4en
dc.language.isoenen
dc.publisherMultidisciplinary Digital Publishing Instituteen
dc.relation.projectinfo:eu-repo/grantAgreement/EC/FP7::SP2::ERC/610058/EU/Imaging the Event Horizon of Black Holes/BLACKHOLECAMen
dc.rights© 2016, 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/en
dc.subjectRelativistic jetsen
dc.subjectParticle-in-cell simulationsen
dc.subjectGlobal jetsen
dc.subjectHelical magnetic fieldsen
dc.subjectKinetic instabilitiesen
dc.subjectKink instabilityen
dc.titleMicroscopic processes in global relativistic jets containing helical magnetic fieldsen
dc.typeArticle (peer-reviewed)en
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