Microscopic Processes in Global Relativistic Jets Containing Helical Magnetic Fields: Dependence on Jet Radius

In 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 r...

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Autores: Nishikawa, Ken-Ichi, Mizuno, Yosuke, Gómez Fernández, José L., Duţan, Ioana, Meli, Athina, White, Charley, Niemiec, Jacek, Kobzar, Oleh, Pohl, Martin, Pe’er, Asaf, Frederiksen, Jacob Trier, Nordlund, Åke, Sol, Helene, Hardee, Philip E., Hartmann, Dieter H.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2017
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/156761
Acceso en línea:http://hdl.handle.net/10261/156761
Access Level:acceso abierto
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spelling Microscopic Processes in Global Relativistic Jets Containing Helical Magnetic Fields: Dependence on Jet RadiusNishikawa, Ken-IchiMizuno, YosukeGómez Fernández, José L.Duţan, IoanaMeli, AthinaWhite, CharleyNiemiec, JacekKobzar, OlehPohl, MartinPe’er, AsafFrederiksen, Jacob TrierNordlund, ÅkeSol, HeleneHardee, Philip E.Hartmann, Dieter H.ddc:520ddc:530In 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.This work is supported by NSF AST-0908010, AST-0908040, NASA-NNX09AD16G, NNX12AH06G, NNX13AP-21G, and NNX13AP14G grants. The work of J.N. and O.K. has been supported by Narodowe Centrum Nauki through research project DEC-2013/10/E/ST9/00662. Y.M. is supported by the ERC Synergy Grant “BlackHoleCam—Imaging the Event Horizon of Black Holes” (Grant No. 610058). M.P. acknowledges support through grant PO 1508/1-2 of the Deutsche Forschungsgemeinschaft. Simulations were performed using Pleiades and Endeavor facilities at NASA Advanced Supercomputing (NAS), and using Gordon and Comet at The San Diego Supercomputer Center (SDSC), and Stampede at The Texas Advanced Computing Center, which are supported by the NSF. This research was started during the program “Chirps, Mergers and Explosions: The Final Moments of Coalescing Compact Binaries” at the Kavli Institute for Theoretical Physics, which is supported by the National Science Foundation under grant No. PHY05-51164. The first velocity shear results using an electron positron plasma were obtained during the Summer Aspen workshop “Astrophysical Mechanisms of Particle Acceleration and Escape from the Accelerators” held at the Aspen Center for Physics (1–15 September 2013).We acknowledge support by the CSIC Open Access Publication Initiative through its Unit of Information Resources for Research (URICI)Multidisciplinary Digital Publishing InstituteConsejo Superior de Investigaciones Científicas (España)NASAEuropean Research CouncilGerman Research FoundationKavli Institute for Theoretical PhysicsNational Science Centre (Poland)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2017201720172017info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/156761reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://doi.org/10.3390/galaxies5040058Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1567612026-05-22T06:33:51Z
dc.title.none.fl_str_mv Microscopic Processes in Global Relativistic Jets Containing Helical Magnetic Fields: Dependence on Jet Radius
title Microscopic Processes in Global Relativistic Jets Containing Helical Magnetic Fields: Dependence on Jet Radius
spellingShingle Microscopic Processes in Global Relativistic Jets Containing Helical Magnetic Fields: Dependence on Jet Radius
Nishikawa, Ken-Ichi
ddc:520
ddc:530
title_short Microscopic Processes in Global Relativistic Jets Containing Helical Magnetic Fields: Dependence on Jet Radius
title_full Microscopic Processes in Global Relativistic Jets Containing Helical Magnetic Fields: Dependence on Jet Radius
title_fullStr Microscopic Processes in Global Relativistic Jets Containing Helical Magnetic Fields: Dependence on Jet Radius
title_full_unstemmed Microscopic Processes in Global Relativistic Jets Containing Helical Magnetic Fields: Dependence on Jet Radius
title_sort Microscopic Processes in Global Relativistic Jets Containing Helical Magnetic Fields: Dependence on Jet Radius
dc.creator.none.fl_str_mv Nishikawa, Ken-Ichi
Mizuno, Yosuke
Gómez Fernández, José L.
Duţan, Ioana
Meli, Athina
White, Charley
Niemiec, Jacek
Kobzar, Oleh
Pohl, Martin
Pe’er, Asaf
Frederiksen, Jacob Trier
Nordlund, Åke
Sol, Helene
Hardee, Philip E.
Hartmann, Dieter H.
author Nishikawa, Ken-Ichi
author_facet Nishikawa, Ken-Ichi
Mizuno, Yosuke
Gómez Fernández, José L.
Duţan, Ioana
Meli, Athina
White, Charley
Niemiec, Jacek
Kobzar, Oleh
Pohl, Martin
Pe’er, Asaf
Frederiksen, Jacob Trier
Nordlund, Åke
Sol, Helene
Hardee, Philip E.
Hartmann, Dieter H.
author_role author
author2 Mizuno, Yosuke
Gómez Fernández, José L.
Duţan, Ioana
Meli, Athina
White, Charley
Niemiec, Jacek
Kobzar, Oleh
Pohl, Martin
Pe’er, Asaf
Frederiksen, Jacob Trier
Nordlund, Åke
Sol, Helene
Hardee, Philip E.
Hartmann, Dieter H.
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas (España)
NASA
European Research Council
German Research Foundation
Kavli Institute for Theoretical Physics
National Science Centre (Poland)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv ddc:520
ddc:530
topic ddc:520
ddc:530
description In 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.
publishDate 2017
dc.date.none.fl_str_mv 2017
2017
2017
2017
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/156761
url http://hdl.handle.net/10261/156761
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://doi.org/10.3390/galaxies5040058
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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