THREE-DIMENSIONAL RELATIVISTIC MAGNETOHYDRODYNAMIC SIMULATIONS OF CURRENT-DRIVEN INSTABILITY. III. ROTATING RELATIVISTIC JETS
We have investigated the influence of jet rotation and differential motion on the linear and nonlinear development of the current-driven (CD) kink instability of force-free helical magnetic equilibria via three-dimensional relativistic magnetohydrodynamic simulations. In this study, we follow the te...
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| Veröffentlicht in: | The Astrophysical journal 2012-09, Vol.757 (1), p.1-14 |
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| creator | MIZUNO, Yosuke LYUBARSKY, Yuri NISHIKAWA, Ken-Ichi HARDEE, Philip E |
| description | We have investigated the influence of jet rotation and differential motion on the linear and nonlinear development of the current-driven (CD) kink instability of force-free helical magnetic equilibria via three-dimensional relativistic magnetohydrodynamic simulations. In this study, we follow the temporal development within a periodic computational box. Displacement of the initial helical magnetic field leads to the growth of the CD kink instability. We find that, in accordance with the linear stability theory, the development of the instability depends on the lateral distribution of the poloidal magnetic field. If the poloidal field significantly decreases outward from the axis, then the initial small perturbations grow strongly, and if multiple wavelengths are excited, then nonlinear interaction eventually disrupts the initial cylindrical configuration. When the profile of the poloidal field is shallow, the instability develops slowly and eventually saturates. We briefly discuss implications of our findings for Poynting-dominated jets. |
| doi_str_mv | 10.1088/0004-637x/757/1/16 |
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III. ROTATING RELATIVISTIC JETS</title><source>IOP Publishing Free Content</source><source>Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals</source><source>Alma/SFX Local Collection</source><creator>MIZUNO, Yosuke ; LYUBARSKY, Yuri ; NISHIKAWA, Ken-Ichi ; HARDEE, Philip E</creator><creatorcontrib>MIZUNO, Yosuke ; LYUBARSKY, Yuri ; NISHIKAWA, Ken-Ichi ; HARDEE, Philip E</creatorcontrib><description>We have investigated the influence of jet rotation and differential motion on the linear and nonlinear development of the current-driven (CD) kink instability of force-free helical magnetic equilibria via three-dimensional relativistic magnetohydrodynamic simulations. In this study, we follow the temporal development within a periodic computational box. Displacement of the initial helical magnetic field leads to the growth of the CD kink instability. We find that, in accordance with the linear stability theory, the development of the instability depends on the lateral distribution of the poloidal magnetic field. If the poloidal field significantly decreases outward from the axis, then the initial small perturbations grow strongly, and if multiple wavelengths are excited, then nonlinear interaction eventually disrupts the initial cylindrical configuration. When the profile of the poloidal field is shallow, the instability develops slowly and eventually saturates. 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III. ROTATING RELATIVISTIC JETS</title><title>The Astrophysical journal</title><description>We have investigated the influence of jet rotation and differential motion on the linear and nonlinear development of the current-driven (CD) kink instability of force-free helical magnetic equilibria via three-dimensional relativistic magnetohydrodynamic simulations. In this study, we follow the temporal development within a periodic computational box. Displacement of the initial helical magnetic field leads to the growth of the CD kink instability. We find that, in accordance with the linear stability theory, the development of the instability depends on the lateral distribution of the poloidal magnetic field. If the poloidal field significantly decreases outward from the axis, then the initial small perturbations grow strongly, and if multiple wavelengths are excited, then nonlinear interaction eventually disrupts the initial cylindrical configuration. When the profile of the poloidal field is shallow, the instability develops slowly and eventually saturates. We briefly discuss implications of our findings for Poynting-dominated jets.</description><subject>ASTRONOMY</subject><subject>ASTROPHYSICS</subject><subject>ASTROPHYSICS, COSMOLOGY AND ASTRONOMY</subject><subject>Computer simulation</subject><subject>COMPUTERIZED SIMULATION</subject><subject>DISTURBANCES</subject><subject>Earth, ocean, space</subject><subject>ELECTRIC CURRENTS</subject><subject>Exact sciences and technology</subject><subject>GALAXIES</subject><subject>Helical</subject><subject>Instability</subject><subject>JETS</subject><subject>KINK INSTABILITY</subject><subject>MAGNETIC FIELD CONFIGURATIONS</subject><subject>MAGNETIC FIELDS</subject><subject>MAGNETOHYDRODYNAMICS</subject><subject>NONLINEAR PROBLEMS</subject><subject>Nonlinearity</subject><subject>PERIODICITY</subject><subject>RELATIVISTIC RANGE</subject><subject>ROTATION</subject><subject>Stability</subject><subject>Three dimensional</subject><subject>THREE-DIMENSIONAL CALCULATIONS</subject><issn>0004-637X</issn><issn>1538-4357</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNqNkU1r20AQhpfQQN20f6AnQSn0Inu_d3VUbcXeIq9AWof4tMjrFVVxrESrQHvof6-E00JuncswwzMvAw8AHxGcIyjlAkJIY07Ez4VgYoEWiF-BGWJExpQw8QbM_gL3b8G7EH5MI06SGfhtNmWWxSu1zXSlCp3mUZnlqVF3qjJqGW3Ttc5MsdmvymK11-l23FVqu5uQQldRcRstd2WZaROvSnWX6UjpyqRfVa7Mfh4ppeZRWZiR1uvXyd8yU70H1019Cv7DS78Bu9vMLDdxXqzVMs1jRyUa4iNLmgOn0jOKKaQJhlhI5D1qaC0TgqSgAvIjERzimjYHKgh33hPXHBHh6EBuwKdLbheG1gbXDt59d9357N1gMYYJJpCP1JcL9dh3T88-DPahDc6fTvXZd8_BIkEg5Iwz-R8owkzQsUYUX1DXdyH0vrGPfftQ978sgnaSZycZdnJjR3kWWTS98vklvw6uPjV9fXZt-HeJOZGUEUr-AEZpjfo</recordid><startdate>20120920</startdate><enddate>20120920</enddate><creator>MIZUNO, Yosuke</creator><creator>LYUBARSKY, Yuri</creator><creator>NISHIKAWA, Ken-Ichi</creator><creator>HARDEE, Philip E</creator><general>IOP</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>KL.</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>OTOTI</scope></search><sort><creationdate>20120920</creationdate><title>THREE-DIMENSIONAL RELATIVISTIC MAGNETOHYDRODYNAMIC SIMULATIONS OF CURRENT-DRIVEN INSTABILITY. 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ROTATING RELATIVISTIC JETS</title><author>MIZUNO, Yosuke ; LYUBARSKY, Yuri ; NISHIKAWA, Ken-Ichi ; HARDEE, Philip E</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c481t-d59fb648e5424049202781ee1f4a8931874706d37602a4fb4736cee3cfd1361b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>ASTRONOMY</topic><topic>ASTROPHYSICS</topic><topic>ASTROPHYSICS, COSMOLOGY AND ASTRONOMY</topic><topic>Computer simulation</topic><topic>COMPUTERIZED SIMULATION</topic><topic>DISTURBANCES</topic><topic>Earth, ocean, space</topic><topic>ELECTRIC CURRENTS</topic><topic>Exact sciences and technology</topic><topic>GALAXIES</topic><topic>Helical</topic><topic>Instability</topic><topic>JETS</topic><topic>KINK INSTABILITY</topic><topic>MAGNETIC FIELD CONFIGURATIONS</topic><topic>MAGNETIC FIELDS</topic><topic>MAGNETOHYDRODYNAMICS</topic><topic>NONLINEAR PROBLEMS</topic><topic>Nonlinearity</topic><topic>PERIODICITY</topic><topic>RELATIVISTIC RANGE</topic><topic>ROTATION</topic><topic>Stability</topic><topic>Three dimensional</topic><topic>THREE-DIMENSIONAL CALCULATIONS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>MIZUNO, Yosuke</creatorcontrib><creatorcontrib>LYUBARSKY, Yuri</creatorcontrib><creatorcontrib>NISHIKAWA, Ken-Ichi</creatorcontrib><creatorcontrib>HARDEE, Philip E</creatorcontrib><collection>Pascal-Francis</collection><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>OSTI.GOV</collection><jtitle>The Astrophysical journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>MIZUNO, Yosuke</au><au>LYUBARSKY, Yuri</au><au>NISHIKAWA, Ken-Ichi</au><au>HARDEE, Philip E</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>THREE-DIMENSIONAL RELATIVISTIC MAGNETOHYDRODYNAMIC SIMULATIONS OF CURRENT-DRIVEN INSTABILITY. III. ROTATING RELATIVISTIC JETS</atitle><jtitle>The Astrophysical journal</jtitle><date>2012-09-20</date><risdate>2012</risdate><volume>757</volume><issue>1</issue><spage>1</spage><epage>14</epage><pages>1-14</pages><issn>0004-637X</issn><eissn>1538-4357</eissn><coden>ASJOAB</coden><abstract>We have investigated the influence of jet rotation and differential motion on the linear and nonlinear development of the current-driven (CD) kink instability of force-free helical magnetic equilibria via three-dimensional relativistic magnetohydrodynamic simulations. In this study, we follow the temporal development within a periodic computational box. Displacement of the initial helical magnetic field leads to the growth of the CD kink instability. We find that, in accordance with the linear stability theory, the development of the instability depends on the lateral distribution of the poloidal magnetic field. If the poloidal field significantly decreases outward from the axis, then the initial small perturbations grow strongly, and if multiple wavelengths are excited, then nonlinear interaction eventually disrupts the initial cylindrical configuration. When the profile of the poloidal field is shallow, the instability develops slowly and eventually saturates. We briefly discuss implications of our findings for Poynting-dominated jets.</abstract><cop>Bristol</cop><pub>IOP</pub><doi>10.1088/0004-637x/757/1/16</doi><tpages>14</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | ASTRONOMY ASTROPHYSICS ASTROPHYSICS, COSMOLOGY AND ASTRONOMY Computer simulation COMPUTERIZED SIMULATION DISTURBANCES Earth, ocean, space ELECTRIC CURRENTS Exact sciences and technology GALAXIES Helical Instability JETS KINK INSTABILITY MAGNETIC FIELD CONFIGURATIONS MAGNETIC FIELDS MAGNETOHYDRODYNAMICS NONLINEAR PROBLEMS Nonlinearity PERIODICITY RELATIVISTIC RANGE ROTATION Stability Three dimensional THREE-DIMENSIONAL CALCULATIONS |
| title | THREE-DIMENSIONAL RELATIVISTIC MAGNETOHYDRODYNAMIC SIMULATIONS OF CURRENT-DRIVEN INSTABILITY. III. ROTATING RELATIVISTIC JETS |
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