Firehose driven magnetic fluctuations in the magnetosphere
The nonlinear saturation of the firehose instability in the high plasma pressure central plasma sheet is shown to produce a wide spectrum of Alfvénic fluctuations in the range of Pi‐2 geomagnetic pulsations. The wave energy sources are the small p∥/p⊥ > 1 + B2/μ0p⊥ anisotropies which are created...
Gespeichert in:
| Veröffentlicht in: | Geophysical research letters 2004-03, Vol.31 (6), p.L06807.1-n/a |
|---|---|
| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | n/a |
|---|---|
| container_issue | 6 |
| container_start_page | L06807.1 |
| container_title | Geophysical research letters |
| container_volume | 31 |
| creator | Horton, W. Xu, B.-Y. Wong, H. Vernon |
| description | The nonlinear saturation of the firehose instability in the high plasma pressure central plasma sheet is shown to produce a wide spectrum of Alfvénic fluctuations in the range of Pi‐2 geomagnetic pulsations. The wave energy sources are the small p∥/p⊥ > 1 + B2/μ0p⊥ anisotropies which are created by Earthward ion convection at constant first and second adiabatic invariants. In the nonlinear state, the field‐line curvature force is weaker than the linear force. This weakening of the driving force limits the amplitude of the Alfvénic fluctuations. Away from the equatorial plane, the plasma is firehose stable, but carries large magnetic fluctuations. |
| doi_str_mv | 10.1029/2003GL018309 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_28169877</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>28169877</sourcerecordid><originalsourceid>FETCH-LOGICAL-c4468-f11022dc7103535c1eb07f0ca6f19d44a9c3a633fac1c62fa6f88aaa3de31cd83</originalsourceid><addsrcrecordid>eNqFkMtOwzAQRS0EEqWw4wOygRWBcZz4wQ5VNCBFgHioEhvLODY1pEmxE6B_T6pWwApWY43PPRpdhPYxHGNIxEkCQPICMCcgNtAAizSNOQDbRAMA0b8TRrfRTggv0JNA8ACdjp030yaYqPTu3dTRTD3XpnU6slWn2061rqlD5OqonZr1ZxPmU-PNLtqyqgpmbz2H6GF8fj-6iIvr_HJ0VsQ6TSmPLe5vS0rNMJCMZBqbJ2AWtKIWizJNldBEUUKs0ljTxPZ7zpVSpDQE65KTITpceee-eetMaOXMBW2qStWm6YJMOKaCM_YviDkQLrKl8WgFat-E4I2Vc-9myi8kBrlsUv5usscP1l4VtKqsV7V24SeTsRQnNOu5ZMV9uMos_nTK_LbArK-nD8WrkAut-fwOKf8qKSMsk5OrXD5SLm7uJplk5AvMsZA1</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>18038958</pqid></control><display><type>article</type><title>Firehose driven magnetic fluctuations in the magnetosphere</title><source>Wiley-Blackwell Free Backfiles(OpenAccess)</source><source>Free E-Journal (出版社公開部分のみ）</source><source>Wiley Online Library All Journals</source><source>Wiley Online Library AGU Backfiles</source><creator>Horton, W. ; Xu, B.-Y. ; Wong, H. Vernon</creator><creatorcontrib>Horton, W. ; Xu, B.-Y. ; Wong, H. Vernon</creatorcontrib><description>The nonlinear saturation of the firehose instability in the high plasma pressure central plasma sheet is shown to produce a wide spectrum of Alfvénic fluctuations in the range of Pi‐2 geomagnetic pulsations. The wave energy sources are the small p∥/p⊥ > 1 + B2/μ0p⊥ anisotropies which are created by Earthward ion convection at constant first and second adiabatic invariants. In the nonlinear state, the field‐line curvature force is weaker than the linear force. This weakening of the driving force limits the amplitude of the Alfvénic fluctuations. Away from the equatorial plane, the plasma is firehose stable, but carries large magnetic fluctuations.</description><identifier>ISSN: 0094-8276</identifier><identifier>EISSN: 1944-8007</identifier><identifier>DOI: 10.1029/2003GL018309</identifier><identifier>CODEN: GPRLAJ</identifier><language>eng</language><publisher>Washington, DC: Blackwell Publishing Ltd</publisher><subject>Earth, ocean, space ; Exact sciences and technology</subject><ispartof>Geophysical research letters, 2004-03, Vol.31 (6), p.L06807.1-n/a</ispartof><rights>Copyright 2004 by the American Geophysical Union.</rights><rights>2004 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4468-f11022dc7103535c1eb07f0ca6f19d44a9c3a633fac1c62fa6f88aaa3de31cd83</citedby><cites>FETCH-LOGICAL-c4468-f11022dc7103535c1eb07f0ca6f19d44a9c3a633fac1c62fa6f88aaa3de31cd83</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1029%2F2003GL018309$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1029%2F2003GL018309$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,1433,11514,27924,27925,45574,45575,46409,46468,46833,46892</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=15741265$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Horton, W.</creatorcontrib><creatorcontrib>Xu, B.-Y.</creatorcontrib><creatorcontrib>Wong, H. Vernon</creatorcontrib><title>Firehose driven magnetic fluctuations in the magnetosphere</title><title>Geophysical research letters</title><addtitle>Geophys. Res. Lett</addtitle><description>The nonlinear saturation of the firehose instability in the high plasma pressure central plasma sheet is shown to produce a wide spectrum of Alfvénic fluctuations in the range of Pi‐2 geomagnetic pulsations. The wave energy sources are the small p∥/p⊥ > 1 + B2/μ0p⊥ anisotropies which are created by Earthward ion convection at constant first and second adiabatic invariants. In the nonlinear state, the field‐line curvature force is weaker than the linear force. This weakening of the driving force limits the amplitude of the Alfvénic fluctuations. Away from the equatorial plane, the plasma is firehose stable, but carries large magnetic fluctuations.</description><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><issn>0094-8276</issn><issn>1944-8007</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><recordid>eNqFkMtOwzAQRS0EEqWw4wOygRWBcZz4wQ5VNCBFgHioEhvLODY1pEmxE6B_T6pWwApWY43PPRpdhPYxHGNIxEkCQPICMCcgNtAAizSNOQDbRAMA0b8TRrfRTggv0JNA8ACdjp030yaYqPTu3dTRTD3XpnU6slWn2061rqlD5OqonZr1ZxPmU-PNLtqyqgpmbz2H6GF8fj-6iIvr_HJ0VsQ6TSmPLe5vS0rNMJCMZBqbJ2AWtKIWizJNldBEUUKs0ljTxPZ7zpVSpDQE65KTITpceee-eetMaOXMBW2qStWm6YJMOKaCM_YviDkQLrKl8WgFat-E4I2Vc-9myi8kBrlsUv5usscP1l4VtKqsV7V24SeTsRQnNOu5ZMV9uMos_nTK_LbArK-nD8WrkAut-fwOKf8qKSMsk5OrXD5SLm7uJplk5AvMsZA1</recordid><startdate>200403</startdate><enddate>200403</enddate><creator>Horton, W.</creator><creator>Xu, B.-Y.</creator><creator>Wong, H. Vernon</creator><general>Blackwell Publishing Ltd</general><general>American Geophysical Union</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>F1W</scope><scope>H96</scope><scope>KL.</scope><scope>L.G</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>200403</creationdate><title>Firehose driven magnetic fluctuations in the magnetosphere</title><author>Horton, W. ; Xu, B.-Y. ; Wong, H. Vernon</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4468-f11022dc7103535c1eb07f0ca6f19d44a9c3a633fac1c62fa6f88aaa3de31cd83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>Earth, ocean, space</topic><topic>Exact sciences and technology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Horton, W.</creatorcontrib><creatorcontrib>Xu, B.-Y.</creatorcontrib><creatorcontrib>Wong, H. Vernon</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Geophysical research letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Horton, W.</au><au>Xu, B.-Y.</au><au>Wong, H. Vernon</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Firehose driven magnetic fluctuations in the magnetosphere</atitle><jtitle>Geophysical research letters</jtitle><addtitle>Geophys. Res. Lett</addtitle><date>2004-03</date><risdate>2004</risdate><volume>31</volume><issue>6</issue><spage>L06807.1</spage><epage>n/a</epage><pages>L06807.1-n/a</pages><issn>0094-8276</issn><eissn>1944-8007</eissn><coden>GPRLAJ</coden><abstract>The nonlinear saturation of the firehose instability in the high plasma pressure central plasma sheet is shown to produce a wide spectrum of Alfvénic fluctuations in the range of Pi‐2 geomagnetic pulsations. The wave energy sources are the small p∥/p⊥ > 1 + B2/μ0p⊥ anisotropies which are created by Earthward ion convection at constant first and second adiabatic invariants. In the nonlinear state, the field‐line curvature force is weaker than the linear force. This weakening of the driving force limits the amplitude of the Alfvénic fluctuations. Away from the equatorial plane, the plasma is firehose stable, but carries large magnetic fluctuations.</abstract><cop>Washington, DC</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1029/2003GL018309</doi><tpages>4</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0094-8276 |
| ispartof | Geophysical research letters, 2004-03, Vol.31 (6), p.L06807.1-n/a |
| issn | 0094-8276 1944-8007 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_28169877 |
| source | Wiley-Blackwell Free Backfiles(OpenAccess); Free E-Journal (出版社公開部分のみ）; Wiley Online Library All Journals; Wiley Online Library AGU Backfiles |
| subjects | Earth, ocean, space Exact sciences and technology |
| title | Firehose driven magnetic fluctuations in the magnetosphere |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-28T10%3A39%3A44IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Firehose%20driven%20magnetic%20fluctuations%20in%20the%20magnetosphere&rft.jtitle=Geophysical%20research%20letters&rft.au=Horton,%20W.&rft.date=2004-03&rft.volume=31&rft.issue=6&rft.spage=L06807.1&rft.epage=n/a&rft.pages=L06807.1-n/a&rft.issn=0094-8276&rft.eissn=1944-8007&rft.coden=GPRLAJ&rft_id=info:doi/10.1029/2003GL018309&rft_dat=%3Cproquest_cross%3E28169877%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=18038958&rft_id=info:pmid/&rfr_iscdi=true |