MAGNETIC FIELD GENERATION IN CORE-SHEATH JETS VIA THE KINETIC KELVIN-HELMHOLTZ INSTABILITY
We have investigated magnetic field generation in velocity shears via the kinetic Kelvin-Helmholtz instability (kKHI) using a relativistic plasma jet core and stationary plasma sheath. Our three-dimensional particle-in-cell simulations consider plasma jet cores with Lorentz factors of 1.5, 5, and 15...
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| Veröffentlicht in: | The Astrophysical journal 2014-09, Vol.793 (1), p.1-16 |
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| container_title | The Astrophysical journal |
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| creator | Nishikawa, K-I Hardee, P E DUTAN, I Niemiec, J Medvedev, M Mizuno, Y Meli, A Sol, H Zhang, B Pohl, M Hartmann, D H |
| description | We have investigated magnetic field generation in velocity shears via the kinetic Kelvin-Helmholtz instability (kKHI) using a relativistic plasma jet core and stationary plasma sheath. Our three-dimensional particle-in-cell simulations consider plasma jet cores with Lorentz factors of 1.5, 5, and 15 for both electron-proton and electron-positron plasmas. For electron-proton plasmas, we find generation of strong large-scale DC currents and magnetic fields that extend over the entire shear surface and reach thicknesses of a few tens of electron skin depths. For electron-positron plasmas, we find generation of alternating currents and magnetic fields. Jet and sheath plasmas are accelerated across the shear surface in the strong magnetic fields generated by the kKHI. The mixing of jet and sheath plasmas generates a transverse structure similar to that produced by the Weibel instability. |
| doi_str_mv | 10.1088/0004-637X/793/1/60 |
| format | Article |
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Our three-dimensional particle-in-cell simulations consider plasma jet cores with Lorentz factors of 1.5, 5, and 15 for both electron-proton and electron-positron plasmas. For electron-proton plasmas, we find generation of strong large-scale DC currents and magnetic fields that extend over the entire shear surface and reach thicknesses of a few tens of electron skin depths. For electron-positron plasmas, we find generation of alternating currents and magnetic fields. Jet and sheath plasmas are accelerated across the shear surface in the strong magnetic fields generated by the kKHI. The mixing of jet and sheath plasmas generates a transverse structure similar to that produced by the Weibel instability.</description><identifier>ISSN: 1538-4357</identifier><identifier>ISSN: 0004-637X</identifier><identifier>EISSN: 1538-4357</identifier><identifier>DOI: 10.1088/0004-637X/793/1/60</identifier><language>eng</language><publisher>United States: American Astronomical Society</publisher><subject>ACCELERATION ; ALTERNATING CURRENT ; Astrophysics ; ASTROPHYSICS, COSMOLOGY AND ASTRONOMY ; Electron-positron plasmas ; HELMHOLTZ INSTABILITY ; Jets ; Kelvin-Helmholtz instability ; Lorentz factor ; LORENTZ INVARIANCE ; MAGNETIC FIELDS ; MIXING ; Particle in cell technique ; Physics ; PLASMA JETS ; PLASMA SHEATH ; RELATIVISTIC PLASMA ; RELATIVISTIC RANGE ; Sheaths ; SIMULATION ; STARS ; SURFACES ; THICKNESS ; Three dimensional ; THREE-DIMENSIONAL CALCULATIONS</subject><ispartof>The Astrophysical journal, 2014-09, Vol.793 (1), p.1-16</ispartof><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c468t-f176da1c2f2eaff3c38ec35972c7b27704727a70f1aeac1cc10ac20b5139d2413</citedby><cites>FETCH-LOGICAL-c468t-f176da1c2f2eaff3c38ec35972c7b27704727a70f1aeac1cc10ac20b5139d2413</cites><orcidid>0000-0002-9725-2524 ; 0000-0001-7861-1707 ; 0000-0001-6031-7040 ; 0000-0001-6036-8569</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,27924,27925</link.rule.ids><backlink>$$Uhttps://hal.science/hal-02557376$$DView record in HAL$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/22364994$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Nishikawa, K-I</creatorcontrib><creatorcontrib>Hardee, P E</creatorcontrib><creatorcontrib>DUTAN, I</creatorcontrib><creatorcontrib>Niemiec, J</creatorcontrib><creatorcontrib>Medvedev, M</creatorcontrib><creatorcontrib>Mizuno, Y</creatorcontrib><creatorcontrib>Meli, A</creatorcontrib><creatorcontrib>Sol, H</creatorcontrib><creatorcontrib>Zhang, B</creatorcontrib><creatorcontrib>Pohl, M</creatorcontrib><creatorcontrib>Hartmann, D H</creatorcontrib><title>MAGNETIC FIELD GENERATION IN CORE-SHEATH JETS VIA THE KINETIC KELVIN-HELMHOLTZ INSTABILITY</title><title>The Astrophysical journal</title><description>We have investigated magnetic field generation in velocity shears via the kinetic Kelvin-Helmholtz instability (kKHI) using a relativistic plasma jet core and stationary plasma sheath. Our three-dimensional particle-in-cell simulations consider plasma jet cores with Lorentz factors of 1.5, 5, and 15 for both electron-proton and electron-positron plasmas. For electron-proton plasmas, we find generation of strong large-scale DC currents and magnetic fields that extend over the entire shear surface and reach thicknesses of a few tens of electron skin depths. For electron-positron plasmas, we find generation of alternating currents and magnetic fields. Jet and sheath plasmas are accelerated across the shear surface in the strong magnetic fields generated by the kKHI. The mixing of jet and sheath plasmas generates a transverse structure similar to that produced by the Weibel instability.</description><subject>ACCELERATION</subject><subject>ALTERNATING CURRENT</subject><subject>Astrophysics</subject><subject>ASTROPHYSICS, COSMOLOGY AND ASTRONOMY</subject><subject>Electron-positron plasmas</subject><subject>HELMHOLTZ INSTABILITY</subject><subject>Jets</subject><subject>Kelvin-Helmholtz instability</subject><subject>Lorentz factor</subject><subject>LORENTZ INVARIANCE</subject><subject>MAGNETIC FIELDS</subject><subject>MIXING</subject><subject>Particle in cell technique</subject><subject>Physics</subject><subject>PLASMA JETS</subject><subject>PLASMA SHEATH</subject><subject>RELATIVISTIC PLASMA</subject><subject>RELATIVISTIC RANGE</subject><subject>Sheaths</subject><subject>SIMULATION</subject><subject>STARS</subject><subject>SURFACES</subject><subject>THICKNESS</subject><subject>Three dimensional</subject><subject>THREE-DIMENSIONAL CALCULATIONS</subject><issn>1538-4357</issn><issn>0004-637X</issn><issn>1538-4357</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqNkU1Lw0AQhoMoWKt_wFPAix5i9yPJZo-xbpu1aQrtWrSXZbvd0EhtajYV_PcmRMSjpxmG5x2GeRznGoJ7CKJoAADwvRCTlwGheAAHIThxejDAkefjgJz-6c-dC2vfWh5R2nNW03icMcGH7oiz9NEds4zNY8FnmcszdzibM2-RsFgk7hMTC3fJY1ckzJ3wLjRh6ZJnXsLSaTJLxaoJLUT8wFMuXi-ds1ztrLn6qX3necTEMPHS2ZgP49TTfhjVXg5JuFFQoxwZledY48hoHFCCNFkjQoBPEFEE5FAZpaHWECiNwDqAmG6QD3Hfuen2lrYupNVFbfRWl_u90bVECIc-pX5D3XXUVu3koSreVfUlS1XIJE5lOwMoCAgm4We78bZjD1X5cTS2lu-F1Wa3U3tTHq2EBDf_IxSAf6CANjgNWxR1qK5KayuT_54BgWwtytaKbC3KxqKEsgl9A76phTU</recordid><startdate>20140920</startdate><enddate>20140920</enddate><creator>Nishikawa, K-I</creator><creator>Hardee, P E</creator><creator>DUTAN, I</creator><creator>Niemiec, J</creator><creator>Medvedev, M</creator><creator>Mizuno, Y</creator><creator>Meli, A</creator><creator>Sol, H</creator><creator>Zhang, B</creator><creator>Pohl, M</creator><creator>Hartmann, D H</creator><general>American Astronomical Society</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>KL.</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>1XC</scope><scope>OTOTI</scope><orcidid>https://orcid.org/0000-0002-9725-2524</orcidid><orcidid>https://orcid.org/0000-0001-7861-1707</orcidid><orcidid>https://orcid.org/0000-0001-6031-7040</orcidid><orcidid>https://orcid.org/0000-0001-6036-8569</orcidid></search><sort><creationdate>20140920</creationdate><title>MAGNETIC FIELD GENERATION IN CORE-SHEATH JETS VIA THE KINETIC KELVIN-HELMHOLTZ INSTABILITY</title><author>Nishikawa, K-I ; Hardee, P E ; DUTAN, I ; Niemiec, J ; Medvedev, M ; Mizuno, Y ; Meli, A ; Sol, H ; Zhang, B ; Pohl, M ; Hartmann, D H</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c468t-f176da1c2f2eaff3c38ec35972c7b27704727a70f1aeac1cc10ac20b5139d2413</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>ACCELERATION</topic><topic>ALTERNATING CURRENT</topic><topic>Astrophysics</topic><topic>ASTROPHYSICS, COSMOLOGY AND ASTRONOMY</topic><topic>Electron-positron plasmas</topic><topic>HELMHOLTZ INSTABILITY</topic><topic>Jets</topic><topic>Kelvin-Helmholtz instability</topic><topic>Lorentz factor</topic><topic>LORENTZ INVARIANCE</topic><topic>MAGNETIC FIELDS</topic><topic>MIXING</topic><topic>Particle in cell technique</topic><topic>Physics</topic><topic>PLASMA JETS</topic><topic>PLASMA SHEATH</topic><topic>RELATIVISTIC PLASMA</topic><topic>RELATIVISTIC RANGE</topic><topic>Sheaths</topic><topic>SIMULATION</topic><topic>STARS</topic><topic>SURFACES</topic><topic>THICKNESS</topic><topic>Three dimensional</topic><topic>THREE-DIMENSIONAL CALCULATIONS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Nishikawa, K-I</creatorcontrib><creatorcontrib>Hardee, P E</creatorcontrib><creatorcontrib>DUTAN, I</creatorcontrib><creatorcontrib>Niemiec, J</creatorcontrib><creatorcontrib>Medvedev, M</creatorcontrib><creatorcontrib>Mizuno, Y</creatorcontrib><creatorcontrib>Meli, A</creatorcontrib><creatorcontrib>Sol, H</creatorcontrib><creatorcontrib>Zhang, B</creatorcontrib><creatorcontrib>Pohl, M</creatorcontrib><creatorcontrib>Hartmann, D H</creatorcontrib><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Hyper Article en Ligne (HAL)</collection><collection>OSTI.GOV</collection><jtitle>The Astrophysical journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Nishikawa, K-I</au><au>Hardee, P E</au><au>DUTAN, I</au><au>Niemiec, J</au><au>Medvedev, M</au><au>Mizuno, Y</au><au>Meli, A</au><au>Sol, H</au><au>Zhang, B</au><au>Pohl, M</au><au>Hartmann, D H</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>MAGNETIC FIELD GENERATION IN CORE-SHEATH JETS VIA THE KINETIC KELVIN-HELMHOLTZ INSTABILITY</atitle><jtitle>The Astrophysical journal</jtitle><date>2014-09-20</date><risdate>2014</risdate><volume>793</volume><issue>1</issue><spage>1</spage><epage>16</epage><pages>1-16</pages><issn>1538-4357</issn><issn>0004-637X</issn><eissn>1538-4357</eissn><abstract>We have investigated magnetic field generation in velocity shears via the kinetic Kelvin-Helmholtz instability (kKHI) using a relativistic plasma jet core and stationary plasma sheath. Our three-dimensional particle-in-cell simulations consider plasma jet cores with Lorentz factors of 1.5, 5, and 15 for both electron-proton and electron-positron plasmas. For electron-proton plasmas, we find generation of strong large-scale DC currents and magnetic fields that extend over the entire shear surface and reach thicknesses of a few tens of electron skin depths. For electron-positron plasmas, we find generation of alternating currents and magnetic fields. Jet and sheath plasmas are accelerated across the shear surface in the strong magnetic fields generated by the kKHI. The mixing of jet and sheath plasmas generates a transverse structure similar to that produced by the Weibel instability.</abstract><cop>United States</cop><pub>American Astronomical Society</pub><doi>10.1088/0004-637X/793/1/60</doi><tpages>16</tpages><orcidid>https://orcid.org/0000-0002-9725-2524</orcidid><orcidid>https://orcid.org/0000-0001-7861-1707</orcidid><orcidid>https://orcid.org/0000-0001-6031-7040</orcidid><orcidid>https://orcid.org/0000-0001-6036-8569</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | ACCELERATION ALTERNATING CURRENT Astrophysics ASTROPHYSICS, COSMOLOGY AND ASTRONOMY Electron-positron plasmas HELMHOLTZ INSTABILITY Jets Kelvin-Helmholtz instability Lorentz factor LORENTZ INVARIANCE MAGNETIC FIELDS MIXING Particle in cell technique Physics PLASMA JETS PLASMA SHEATH RELATIVISTIC PLASMA RELATIVISTIC RANGE Sheaths SIMULATION STARS SURFACES THICKNESS Three dimensional THREE-DIMENSIONAL CALCULATIONS |
| title | MAGNETIC FIELD GENERATION IN CORE-SHEATH JETS VIA THE KINETIC KELVIN-HELMHOLTZ INSTABILITY |
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