Wave-number spectra and intermittency in the terrestrial foreshock region

Wave-number spectra and intermittency in the terrestrial foreshock region

Wave-number spectra of magnetic field fluctuations are directly determined in the terrestrial foreshock region (upstream of a quasiparallel collisionless shock wave) using four-point Cluster spacecraft measurements. The spectral curve is characterized by three ranges reminiscent of turbulence: energ...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Physical review letters 2006-11, Vol.97 (19), p.191101-191101, Article 191101
Hauptverfasser: Narita, Y, Glassmeier, K-H, Treumann, R A
Format: Artikel
Sprache:eng
Schlagworte:
ALFVEN WAVES
ANISOTROPY
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
FLUCTUATIONS
FORESHOCKS
MAGNETIC FIELDS
SHOCK WAVES
SPECTRA
TURBULENCE
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 191101
container_issue 19
container_start_page 191101
container_title Physical review letters
container_volume 97
creator Narita, Y
Glassmeier, K-H
Treumann, R A
description Wave-number spectra of magnetic field fluctuations are directly determined in the terrestrial foreshock region (upstream of a quasiparallel collisionless shock wave) using four-point Cluster spacecraft measurements. The spectral curve is characterized by three ranges reminiscent of turbulence: energy injection, inertial, and dissipation range. The spectral index for the inertial range spectrum is close to Kolmogorov's slope, -5/3. On the other hand, the fluctuations are highly anisotropic and intermittent perpendicular to the mean magnetic field direction. These results suggest that the foreshock is in a weakly turbulent and intermittent state in which parallel propagating Alfvén waves interact with one another, resulting in the phase coherence or the intermittency.
doi_str_mv 10.1103/physrevlett.97.191101
format Article
fullrecord <record><control><sourceid>proquest_osti_</sourceid><recordid>TN_cdi_osti_scitechconnect_20861092</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>68235670</sourcerecordid><originalsourceid>FETCH-LOGICAL-c401t-94210e17f8b4679fec774c130567041c9b86bf44e0f379897da8bc328cbca1e83</originalsourceid><addsrcrecordid>eNpFkFtLAzEQhYMotlZ_grIg-LZ1Zm9JHkW8FAqKKD6GbDrrru6lJmmh_96ULfg0F86ZM3yMXSLMESG9Xdc7Z2nbkvdzyecowxaP2BSBy5gjZsdsCpBiLAH4hJ059w0AmBTilE2QY54XIKZs8am3FPebriQbuTUZb3Wk-1XU9J5s13hPvdmFKfI1RWFlyXnb6DaqhtDWg_mJLH01Q3_OTirdOro41Bn7eHx4v3-Oly9Pi_u7ZWwyQB_LLEEg5JUos4LLigznmcEU8oJDhkaWoiirLCOoUi6F5CstSpMmwpRGI4l0xq7Hu4PzjXKm8WRqM_R9-F0lIAoEmQTVzaha2-F3E35WXeMMta3uadg4VYgk3ScGYT4KjR1cIFqptW06bXcKQe1Jq9dA-o22y0BaSa5G0sF3dQjYlB2t_l0HtOkfgKx9Hg</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>68235670</pqid></control><display><type>article</type><title>Wave-number spectra and intermittency in the terrestrial foreshock region</title><source>American Physical Society Journals</source><creator>Narita, Y ; Glassmeier, K-H ; Treumann, R A</creator><creatorcontrib>Narita, Y ; Glassmeier, K-H ; Treumann, R A</creatorcontrib><description>Wave-number spectra of magnetic field fluctuations are directly determined in the terrestrial foreshock region (upstream of a quasiparallel collisionless shock wave) using four-point Cluster spacecraft measurements. The spectral curve is characterized by three ranges reminiscent of turbulence: energy injection, inertial, and dissipation range. The spectral index for the inertial range spectrum is close to Kolmogorov's slope, -5/3. On the other hand, the fluctuations are highly anisotropic and intermittent perpendicular to the mean magnetic field direction. These results suggest that the foreshock is in a weakly turbulent and intermittent state in which parallel propagating Alfvén waves interact with one another, resulting in the phase coherence or the intermittency.</description><identifier>ISSN: 0031-9007</identifier><identifier>EISSN: 1079-7114</identifier><identifier>DOI: 10.1103/physrevlett.97.191101</identifier><identifier>PMID: 17155608</identifier><language>eng</language><publisher>United States</publisher><subject>ALFVEN WAVES ; ANISOTROPY ; CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ; FLUCTUATIONS ; FORESHOCKS ; MAGNETIC FIELDS ; SHOCK WAVES ; SPECTRA ; TURBULENCE</subject><ispartof>Physical review letters, 2006-11, Vol.97 (19), p.191101-191101, Article 191101</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c401t-94210e17f8b4679fec774c130567041c9b86bf44e0f379897da8bc328cbca1e83</citedby><cites>FETCH-LOGICAL-c401t-94210e17f8b4679fec774c130567041c9b86bf44e0f379897da8bc328cbca1e83</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,777,781,882,2863,2864,27905,27906</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/17155608$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/20861092$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Narita, Y</creatorcontrib><creatorcontrib>Glassmeier, K-H</creatorcontrib><creatorcontrib>Treumann, R A</creatorcontrib><title>Wave-number spectra and intermittency in the terrestrial foreshock region</title><title>Physical review letters</title><addtitle>Phys Rev Lett</addtitle><description>Wave-number spectra of magnetic field fluctuations are directly determined in the terrestrial foreshock region (upstream of a quasiparallel collisionless shock wave) using four-point Cluster spacecraft measurements. The spectral curve is characterized by three ranges reminiscent of turbulence: energy injection, inertial, and dissipation range. The spectral index for the inertial range spectrum is close to Kolmogorov's slope, -5/3. On the other hand, the fluctuations are highly anisotropic and intermittent perpendicular to the mean magnetic field direction. These results suggest that the foreshock is in a weakly turbulent and intermittent state in which parallel propagating Alfvén waves interact with one another, resulting in the phase coherence or the intermittency.</description><subject>ALFVEN WAVES</subject><subject>ANISOTROPY</subject><subject>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</subject><subject>FLUCTUATIONS</subject><subject>FORESHOCKS</subject><subject>MAGNETIC FIELDS</subject><subject>SHOCK WAVES</subject><subject>SPECTRA</subject><subject>TURBULENCE</subject><issn>0031-9007</issn><issn>1079-7114</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNpFkFtLAzEQhYMotlZ_grIg-LZ1Zm9JHkW8FAqKKD6GbDrrru6lJmmh_96ULfg0F86ZM3yMXSLMESG9Xdc7Z2nbkvdzyecowxaP2BSBy5gjZsdsCpBiLAH4hJ059w0AmBTilE2QY54XIKZs8am3FPebriQbuTUZb3Wk-1XU9J5s13hPvdmFKfI1RWFlyXnb6DaqhtDWg_mJLH01Q3_OTirdOro41Bn7eHx4v3-Oly9Pi_u7ZWwyQB_LLEEg5JUos4LLigznmcEU8oJDhkaWoiirLCOoUi6F5CstSpMmwpRGI4l0xq7Hu4PzjXKm8WRqM_R9-F0lIAoEmQTVzaha2-F3E35WXeMMta3uadg4VYgk3ScGYT4KjR1cIFqptW06bXcKQe1Jq9dA-o22y0BaSa5G0sF3dQjYlB2t_l0HtOkfgKx9Hg</recordid><startdate>20061110</startdate><enddate>20061110</enddate><creator>Narita, Y</creator><creator>Glassmeier, K-H</creator><creator>Treumann, R A</creator><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>OTOTI</scope></search><sort><creationdate>20061110</creationdate><title>Wave-number spectra and intermittency in the terrestrial foreshock region</title><author>Narita, Y ; Glassmeier, K-H ; Treumann, R A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c401t-94210e17f8b4679fec774c130567041c9b86bf44e0f379897da8bc328cbca1e83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>ALFVEN WAVES</topic><topic>ANISOTROPY</topic><topic>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</topic><topic>FLUCTUATIONS</topic><topic>FORESHOCKS</topic><topic>MAGNETIC FIELDS</topic><topic>SHOCK WAVES</topic><topic>SPECTRA</topic><topic>TURBULENCE</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Narita, Y</creatorcontrib><creatorcontrib>Glassmeier, K-H</creatorcontrib><creatorcontrib>Treumann, R A</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>OSTI.GOV</collection><jtitle>Physical review letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Narita, Y</au><au>Glassmeier, K-H</au><au>Treumann, R A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Wave-number spectra and intermittency in the terrestrial foreshock region</atitle><jtitle>Physical review letters</jtitle><addtitle>Phys Rev Lett</addtitle><date>2006-11-10</date><risdate>2006</risdate><volume>97</volume><issue>19</issue><spage>191101</spage><epage>191101</epage><pages>191101-191101</pages><artnum>191101</artnum><issn>0031-9007</issn><eissn>1079-7114</eissn><abstract>Wave-number spectra of magnetic field fluctuations are directly determined in the terrestrial foreshock region (upstream of a quasiparallel collisionless shock wave) using four-point Cluster spacecraft measurements. The spectral curve is characterized by three ranges reminiscent of turbulence: energy injection, inertial, and dissipation range. The spectral index for the inertial range spectrum is close to Kolmogorov's slope, -5/3. On the other hand, the fluctuations are highly anisotropic and intermittent perpendicular to the mean magnetic field direction. These results suggest that the foreshock is in a weakly turbulent and intermittent state in which parallel propagating Alfvén waves interact with one another, resulting in the phase coherence or the intermittency.</abstract><cop>United States</cop><pmid>17155608</pmid><doi>10.1103/physrevlett.97.191101</doi><tpages>1</tpages></addata></record>
fulltext fulltext
identifier ISSN: 0031-9007
ispartof Physical review letters, 2006-11, Vol.97 (19), p.191101-191101, Article 191101
issn 0031-9007
1079-7114
language eng
recordid cdi_osti_scitechconnect_20861092
source American Physical Society Journals
subjects ALFVEN WAVES
ANISOTROPY
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
FLUCTUATIONS
FORESHOCKS
MAGNETIC FIELDS
SHOCK WAVES
SPECTRA
TURBULENCE
title Wave-number spectra and intermittency in the terrestrial foreshock region
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-19T14%3A24%3A50IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_osti_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Wave-number%20spectra%20and%20intermittency%20in%20the%20terrestrial%20foreshock%20region&rft.jtitle=Physical%20review%20letters&rft.au=Narita,%20Y&rft.date=2006-11-10&rft.volume=97&rft.issue=19&rft.spage=191101&rft.epage=191101&rft.pages=191101-191101&rft.artnum=191101&rft.issn=0031-9007&rft.eissn=1079-7114&rft_id=info:doi/10.1103/physrevlett.97.191101&rft_dat=%3Cproquest_osti_%3E68235670%3C/proquest_osti_%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=68235670&rft_id=info:pmid/17155608&rfr_iscdi=true