MMS observations of ion‐scale magnetic island in the magnetosheath turbulent plasma
Abstract In this letter, first observations of ion‐scale magnetic island from the Magnetospheric Multiscale mission in the magnetosheath turbulent plasma are presented. The magnetic island is characterized by bipolar variation of magnetic fields with magnetic field compression, strong core field, de...
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2016-08-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1002/2016GL070033 |
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| author | S. Y. Huang F. Sahraoui A. Retino O. Le Contel Z. G. Yuan A. Chasapis N. Aunai H. Breuillard X. H. Deng M. Zhou H. S. Fu Y. Pang D. D. Wang R. B. Torbert K. A. Goodrich R. E. Ergun Y. V. Khotyaintsev P.‐A. Lindqvist C. T. Russell R. J. Strangeway W. Magnes K. Bromund H. Leinweber F. Plaschke B. J. Anderson C. J. Pollock B. L. Giles T. E. Moore J. L. Burch |
| author_facet | S. Y. Huang F. Sahraoui A. Retino O. Le Contel Z. G. Yuan A. Chasapis N. Aunai H. Breuillard X. H. Deng M. Zhou H. S. Fu Y. Pang D. D. Wang R. B. Torbert K. A. Goodrich R. E. Ergun Y. V. Khotyaintsev P.‐A. Lindqvist C. T. Russell R. J. Strangeway W. Magnes K. Bromund H. Leinweber F. Plaschke B. J. Anderson C. J. Pollock B. L. Giles T. E. Moore J. L. Burch |
| author_sort | S. Y. Huang |
| collection | DOAJ |
| description | Abstract In this letter, first observations of ion‐scale magnetic island from the Magnetospheric Multiscale mission in the magnetosheath turbulent plasma are presented. The magnetic island is characterized by bipolar variation of magnetic fields with magnetic field compression, strong core field, density depletion, and strong currents dominated by the parallel component to the local magnetic field. The estimated size of magnetic island is about 8 di, where di is the ion inertial length. Distinct particle behaviors and wave activities inside and at the edges of the magnetic island are observed: parallel electron beam accompanied with electrostatic solitary waves and strong electromagnetic lower hybrid drift waves inside the magnetic island and bidirectional electron beams, whistler waves, weak electromagnetic lower hybrid drift waves, and strong broadband electrostatic noise at the edges of the magnetic island. Our observations demonstrate that highly dynamical, strong wave activities and electron‐scale physics occur within ion‐scale magnetic islands in the magnetosheath turbulent plasma. |
| format | Article |
| id | doaj-art-7f58ef6472124a02bc5c883bb95fc0a8 |
| institution | DOAJ |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2016-08-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-7f58ef6472124a02bc5c883bb95fc0a82025-08-20T03:10:28ZengWileyGeophysical Research Letters0094-82761944-80072016-08-0143157850785810.1002/2016GL070033MMS observations of ion‐scale magnetic island in the magnetosheath turbulent plasmaS. Y. Huang0F. Sahraoui1A. Retino2O. Le Contel3Z. G. Yuan4A. Chasapis5N. Aunai6H. Breuillard7X. H. Deng8M. Zhou9H. S. Fu10Y. Pang11D. D. Wang12R. B. Torbert13K. A. Goodrich14R. E. Ergun15Y. V. Khotyaintsev16P.‐A. Lindqvist17C. T. Russell18R. J. Strangeway19W. Magnes20K. Bromund21H. Leinweber22F. Plaschke23B. J. Anderson24C. J. Pollock25B. L. Giles26T. E. Moore27J. L. Burch28School of Electronic Information Wuhan University Wuhan ChinaLaboratoire de Physique des Plasmas CNRS‐Ecole Polytechnique‐UPMC Palaiseau FranceLaboratoire de Physique des Plasmas CNRS‐Ecole Polytechnique‐UPMC Palaiseau FranceLaboratoire de Physique des Plasmas CNRS‐Ecole Polytechnique‐UPMC Palaiseau FranceSchool of Electronic Information Wuhan University Wuhan ChinaBartol Research Institute and Department of Physics and Astronomy University of Delaware Newark Delaware USALaboratoire de Physique des Plasmas CNRS‐Ecole Polytechnique‐UPMC Palaiseau FranceLaboratoire de Physique des Plasmas CNRS‐Ecole Polytechnique‐UPMC Palaiseau FranceInstitute of Space Science and Technology Nanchang University Nanchang ChinaDepartment of Physics and Astronomy University of California Los Angeles California USASchool of Space and Environment Beihang University Beijing ChinaInstitute of Space Science and Technology Nanchang University Nanchang ChinaSchool of Electronic Information Wuhan University Wuhan ChinaDepartment of Physics University of New Hampshire Durham New Hampshire USALASP University of Colorado Boulder Boulder Colorado USALASP University of Colorado Boulder Boulder Colorado USASwedish Institute of Space Physics Uppsala SwedenRoyal Institute of Technology Stockholm SwedenDepartment of Earth, Planetary, and Space Sciences University of California Los Angeles California USADepartment of Earth, Planetary, and Space Sciences University of California Los Angeles California USASpace Research Institute Austrian Academy of Sciences Graz AustriaJohns Hopkins University Applied Physics Laboratory Laurel Maryland USADepartment of Earth, Planetary, and Space Sciences University of California Los Angeles California USASpace Research Institute Austrian Academy of Sciences Graz AustriaJohns Hopkins University Applied Physics Laboratory Laurel Maryland USANASA Goddard Space Flight Center Greenbelt Maryland USANASA Goddard Space Flight Center Greenbelt Maryland USANASA Goddard Space Flight Center Greenbelt Maryland USASouthwest Research Institute San Antonio Texas USAAbstract In this letter, first observations of ion‐scale magnetic island from the Magnetospheric Multiscale mission in the magnetosheath turbulent plasma are presented. The magnetic island is characterized by bipolar variation of magnetic fields with magnetic field compression, strong core field, density depletion, and strong currents dominated by the parallel component to the local magnetic field. The estimated size of magnetic island is about 8 di, where di is the ion inertial length. Distinct particle behaviors and wave activities inside and at the edges of the magnetic island are observed: parallel electron beam accompanied with electrostatic solitary waves and strong electromagnetic lower hybrid drift waves inside the magnetic island and bidirectional electron beams, whistler waves, weak electromagnetic lower hybrid drift waves, and strong broadband electrostatic noise at the edges of the magnetic island. Our observations demonstrate that highly dynamical, strong wave activities and electron‐scale physics occur within ion‐scale magnetic islands in the magnetosheath turbulent plasma.https://doi.org/10.1002/2016GL070033magnetic islandmagnetosheathelectrostatic solitary waveslower hybrid drift waveselectron beamsmultiscale coupling |
| spellingShingle | S. Y. Huang F. Sahraoui A. Retino O. Le Contel Z. G. Yuan A. Chasapis N. Aunai H. Breuillard X. H. Deng M. Zhou H. S. Fu Y. Pang D. D. Wang R. B. Torbert K. A. Goodrich R. E. Ergun Y. V. Khotyaintsev P.‐A. Lindqvist C. T. Russell R. J. Strangeway W. Magnes K. Bromund H. Leinweber F. Plaschke B. J. Anderson C. J. Pollock B. L. Giles T. E. Moore J. L. Burch MMS observations of ion‐scale magnetic island in the magnetosheath turbulent plasma Geophysical Research Letters magnetic island magnetosheath electrostatic solitary waves lower hybrid drift waves electron beams multiscale coupling |
| title | MMS observations of ion‐scale magnetic island in the magnetosheath turbulent plasma |
| title_full | MMS observations of ion‐scale magnetic island in the magnetosheath turbulent plasma |
| title_fullStr | MMS observations of ion‐scale magnetic island in the magnetosheath turbulent plasma |
| title_full_unstemmed | MMS observations of ion‐scale magnetic island in the magnetosheath turbulent plasma |
| title_short | MMS observations of ion‐scale magnetic island in the magnetosheath turbulent plasma |
| title_sort | mms observations of ion scale magnetic island in the magnetosheath turbulent plasma |
| topic | magnetic island magnetosheath electrostatic solitary waves lower hybrid drift waves electron beams multiscale coupling |
| url | https://doi.org/10.1002/2016GL070033 |
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