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Ion acceleration and reflection on magnetotail antidipolarization fronts
Antidipolarization fronts (ADFs), tailward moving structures in the Earth's magnetotail with sharp decreases in their magnetic Bz component, are thought to be mirror images of earthward propagating dipolarization fronts (DFs) generated on the opposite side of the reconnection site. We use ARTEM...
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| Published in: | Geophysical research letters 2015-11, Vol.42 (21), p.9166-9175 |
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| Main Authors: | , , , , , , , , |
| Format: | Article |
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| cites | cdi_FETCH-LOGICAL-c5462-b8e57af01d7f3302e2fbe8f1f2ebbd1a77acd88c15d39582397a4abf0da590f83 |
| container_end_page | 9175 |
| container_issue | 21 |
| container_start_page | 9166 |
| container_title | Geophysical research letters |
| container_volume | 42 |
| creator | Zhou, Xu-Zhi Pan, Dong-Xiao Angelopoulos, Vassilis Liu, Jiang Runov, Andrei Li, Shan-Shan Li, Jia-Zheng Zong, Qiu-Gang Fu, Sui-Yan |
| description | Antidipolarization fronts (ADFs), tailward moving structures in the Earth's magnetotail with sharp decreases in their magnetic Bz component, are thought to be mirror images of earthward propagating dipolarization fronts (DFs) generated on the opposite side of the reconnection site. We use ARTEMIS (Acceleration, Reconnection, Turbulence, and Electrodynamics of the Moon's Interaction with the Sun) observations and numerical simulations to study the role of ADFs in accelerating and reflecting ambient plasma sheet ions. In both case and statistical observations before ADF arrival, tailward streaming, energy‐dispersed ions are seen first. After about 1 min, the ion fluxes are enhanced significantly with the peak shifted duskward, and then the peak gradually shifts back to the tailward direction until the ADF arrives. All these signatures are reproduced by our simulation model of ion acceleration and reflection on ADFs. We further examine typical ion trajectories before and after ADF reflection, to understand these seemingly complicated ion signatures as well as their similarities with and differences from the DF preceding signatures.
Key Points
Ion distributions before ADF arrival are complicated and different from DF precursor signatures
Such signatures are reproduced by simulation model of ion acceleration and reflection on ADFs
Similarities and differences between ADF and DF precursor signatures are discussed |
| doi_str_mv | 10.1002/2015GL065865 |
| format | article |
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Key Points
Ion distributions before ADF arrival are complicated and different from DF precursor signatures
Such signatures are reproduced by simulation model of ion acceleration and reflection on ADFs
Similarities and differences between ADF and DF precursor signatures are discussed</description><identifier>ISSN: 0094-8276</identifier><identifier>EISSN: 1944-8007</identifier><identifier>DOI: 10.1002/2015GL065865</identifier><language>eng</language><publisher>Washington: Blackwell Publishing Ltd</publisher><subject>Acceleration ; Analogies ; antidipolarization front ; Arrivals ; Computer simulation ; dipolarization front ; Direction ; Dispersion ; Earth ; Earth science ; Electrodynamics ; Energy ; Fronts ; Geophysics ; Ion acceleration ; Ion flux ; Ion fluxes ; ion reflection ; Ion trajectories ; Ions ; Magnetic fields ; Magnetotails ; Mathematical models ; Moon ; Numerical simulations ; Precursors ; Propagation ; reconnection front ; Reflection ; Signatures ; Simulation ; Stellar mass ; Structures ; Sun ; THEMIS statistics ; Trajectories ; Turbulence</subject><ispartof>Geophysical research letters, 2015-11, Vol.42 (21), p.9166-9175</ispartof><rights>2015. American Geophysical Union. All Rights Reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c5462-b8e57af01d7f3302e2fbe8f1f2ebbd1a77acd88c15d39582397a4abf0da590f83</citedby><cites>FETCH-LOGICAL-c5462-b8e57af01d7f3302e2fbe8f1f2ebbd1a77acd88c15d39582397a4abf0da590f83</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2F2015GL065865$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2F2015GL065865$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,11493,27901,27902,46443,46867</link.rule.ids></links><search><creatorcontrib>Zhou, Xu-Zhi</creatorcontrib><creatorcontrib>Pan, Dong-Xiao</creatorcontrib><creatorcontrib>Angelopoulos, Vassilis</creatorcontrib><creatorcontrib>Liu, Jiang</creatorcontrib><creatorcontrib>Runov, Andrei</creatorcontrib><creatorcontrib>Li, Shan-Shan</creatorcontrib><creatorcontrib>Li, Jia-Zheng</creatorcontrib><creatorcontrib>Zong, Qiu-Gang</creatorcontrib><creatorcontrib>Fu, Sui-Yan</creatorcontrib><title>Ion acceleration and reflection on magnetotail antidipolarization fronts</title><title>Geophysical research letters</title><addtitle>Geophys. Res. Lett</addtitle><description>Antidipolarization fronts (ADFs), tailward moving structures in the Earth's magnetotail with sharp decreases in their magnetic Bz component, are thought to be mirror images of earthward propagating dipolarization fronts (DFs) generated on the opposite side of the reconnection site. We use ARTEMIS (Acceleration, Reconnection, Turbulence, and Electrodynamics of the Moon's Interaction with the Sun) observations and numerical simulations to study the role of ADFs in accelerating and reflecting ambient plasma sheet ions. In both case and statistical observations before ADF arrival, tailward streaming, energy‐dispersed ions are seen first. After about 1 min, the ion fluxes are enhanced significantly with the peak shifted duskward, and then the peak gradually shifts back to the tailward direction until the ADF arrives. All these signatures are reproduced by our simulation model of ion acceleration and reflection on ADFs. We further examine typical ion trajectories before and after ADF reflection, to understand these seemingly complicated ion signatures as well as their similarities with and differences from the DF preceding signatures.
Key Points
Ion distributions before ADF arrival are complicated and different from DF precursor signatures
Such signatures are reproduced by simulation model of ion acceleration and reflection on ADFs
Similarities and differences between ADF and DF precursor signatures are discussed</description><subject>Acceleration</subject><subject>Analogies</subject><subject>antidipolarization front</subject><subject>Arrivals</subject><subject>Computer simulation</subject><subject>dipolarization front</subject><subject>Direction</subject><subject>Dispersion</subject><subject>Earth</subject><subject>Earth science</subject><subject>Electrodynamics</subject><subject>Energy</subject><subject>Fronts</subject><subject>Geophysics</subject><subject>Ion acceleration</subject><subject>Ion flux</subject><subject>Ion fluxes</subject><subject>ion reflection</subject><subject>Ion trajectories</subject><subject>Ions</subject><subject>Magnetic fields</subject><subject>Magnetotails</subject><subject>Mathematical models</subject><subject>Moon</subject><subject>Numerical simulations</subject><subject>Precursors</subject><subject>Propagation</subject><subject>reconnection front</subject><subject>Reflection</subject><subject>Signatures</subject><subject>Simulation</subject><subject>Stellar mass</subject><subject>Structures</subject><subject>Sun</subject><subject>THEMIS statistics</subject><subject>Trajectories</subject><subject>Turbulence</subject><issn>0094-8276</issn><issn>1944-8007</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNqNkUtLAzEQx4MoWKs3P0DBiwdXJ0nz2KMU3VaLgvg4huxuIqnb3Zps0frpTV0R8VCEgZlhfv9hHggdYjjFAOSMAGbZFDiTnG2hHk6Hw0QCiG3UA0hjTATfRXshzACAAsU9NJ409UAXhamM161bJ3U58MZWpvhKo831c23aptWuitXWlW7RVNq7j05gfVO3YR_tWF0Fc_Dt--jh8uJ-NE6mt9lkdD5NCjbkJMmlYUJbwKWwlAIxxOZGWmyJyfMSayF0UUpZYFbSlElCU6GHOrdQapaClbSPjru-C9-8Lk1o1dyFOH6la9Msg8ISJOUpFvQ_KDAALEREj_6gs2bp67iIwikGKSijfCMlGCcklYxF6qSjCt-EEE-pFt7NtV8pDGr9J_X7TxEnHf7mKrPayKrsbrqeg0RR0olcaM37j0j7F8UFFUw93WQxuho9cnmtCP0EkVyhVQ</recordid><startdate>20151116</startdate><enddate>20151116</enddate><creator>Zhou, Xu-Zhi</creator><creator>Pan, Dong-Xiao</creator><creator>Angelopoulos, Vassilis</creator><creator>Liu, Jiang</creator><creator>Runov, Andrei</creator><creator>Li, Shan-Shan</creator><creator>Li, Jia-Zheng</creator><creator>Zong, Qiu-Gang</creator><creator>Fu, Sui-Yan</creator><general>Blackwell Publishing Ltd</general><general>John Wiley & Sons, Inc</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>7TN</scope><scope>8FD</scope><scope>F1W</scope><scope>FR3</scope><scope>H8D</scope><scope>H96</scope><scope>KL.</scope><scope>KR7</scope><scope>L.G</scope><scope>L7M</scope><scope>7SU</scope><scope>C1K</scope><scope>7UA</scope></search><sort><creationdate>20151116</creationdate><title>Ion acceleration and reflection on magnetotail antidipolarization fronts</title><author>Zhou, Xu-Zhi ; Pan, Dong-Xiao ; Angelopoulos, Vassilis ; Liu, Jiang ; Runov, Andrei ; Li, Shan-Shan ; Li, Jia-Zheng ; Zong, Qiu-Gang ; Fu, Sui-Yan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5462-b8e57af01d7f3302e2fbe8f1f2ebbd1a77acd88c15d39582397a4abf0da590f83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Acceleration</topic><topic>Analogies</topic><topic>antidipolarization front</topic><topic>Arrivals</topic><topic>Computer simulation</topic><topic>dipolarization front</topic><topic>Direction</topic><topic>Dispersion</topic><topic>Earth</topic><topic>Earth science</topic><topic>Electrodynamics</topic><topic>Energy</topic><topic>Fronts</topic><topic>Geophysics</topic><topic>Ion acceleration</topic><topic>Ion flux</topic><topic>Ion fluxes</topic><topic>ion reflection</topic><topic>Ion trajectories</topic><topic>Ions</topic><topic>Magnetic fields</topic><topic>Magnetotails</topic><topic>Mathematical models</topic><topic>Moon</topic><topic>Numerical simulations</topic><topic>Precursors</topic><topic>Propagation</topic><topic>reconnection front</topic><topic>Reflection</topic><topic>Signatures</topic><topic>Simulation</topic><topic>Stellar mass</topic><topic>Structures</topic><topic>Sun</topic><topic>THEMIS statistics</topic><topic>Trajectories</topic><topic>Turbulence</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhou, Xu-Zhi</creatorcontrib><creatorcontrib>Pan, Dong-Xiao</creatorcontrib><creatorcontrib>Angelopoulos, Vassilis</creatorcontrib><creatorcontrib>Liu, Jiang</creatorcontrib><creatorcontrib>Runov, Andrei</creatorcontrib><creatorcontrib>Li, Shan-Shan</creatorcontrib><creatorcontrib>Li, Jia-Zheng</creatorcontrib><creatorcontrib>Zong, Qiu-Gang</creatorcontrib><creatorcontrib>Fu, Sui-Yan</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Technology Research Database</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Environmental Engineering Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Water Resources Abstracts</collection><jtitle>Geophysical research letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhou, Xu-Zhi</au><au>Pan, Dong-Xiao</au><au>Angelopoulos, Vassilis</au><au>Liu, Jiang</au><au>Runov, Andrei</au><au>Li, Shan-Shan</au><au>Li, Jia-Zheng</au><au>Zong, Qiu-Gang</au><au>Fu, Sui-Yan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Ion acceleration and reflection on magnetotail antidipolarization fronts</atitle><jtitle>Geophysical research letters</jtitle><addtitle>Geophys. Res. Lett</addtitle><date>2015-11-16</date><risdate>2015</risdate><volume>42</volume><issue>21</issue><spage>9166</spage><epage>9175</epage><pages>9166-9175</pages><issn>0094-8276</issn><eissn>1944-8007</eissn><abstract>Antidipolarization fronts (ADFs), tailward moving structures in the Earth's magnetotail with sharp decreases in their magnetic Bz component, are thought to be mirror images of earthward propagating dipolarization fronts (DFs) generated on the opposite side of the reconnection site. We use ARTEMIS (Acceleration, Reconnection, Turbulence, and Electrodynamics of the Moon's Interaction with the Sun) observations and numerical simulations to study the role of ADFs in accelerating and reflecting ambient plasma sheet ions. In both case and statistical observations before ADF arrival, tailward streaming, energy‐dispersed ions are seen first. After about 1 min, the ion fluxes are enhanced significantly with the peak shifted duskward, and then the peak gradually shifts back to the tailward direction until the ADF arrives. All these signatures are reproduced by our simulation model of ion acceleration and reflection on ADFs. We further examine typical ion trajectories before and after ADF reflection, to understand these seemingly complicated ion signatures as well as their similarities with and differences from the DF preceding signatures.
Key Points
Ion distributions before ADF arrival are complicated and different from DF precursor signatures
Such signatures are reproduced by simulation model of ion acceleration and reflection on ADFs
Similarities and differences between ADF and DF precursor signatures are discussed</abstract><cop>Washington</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1002/2015GL065865</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Geophysical research letters, 2015-11, Vol.42 (21), p.9166-9175 |
| issn | 0094-8276 1944-8007 |
| language | eng |
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| source | Wiley-Blackwell AGU Digital Library |
| subjects | Acceleration Analogies antidipolarization front Arrivals Computer simulation dipolarization front Direction Dispersion Earth Earth science Electrodynamics Energy Fronts Geophysics Ion acceleration Ion flux Ion fluxes ion reflection Ion trajectories Ions Magnetic fields Magnetotails Mathematical models Moon Numerical simulations Precursors Propagation reconnection front Reflection Signatures Simulation Stellar mass Structures Sun THEMIS statistics Trajectories Turbulence |
| title | Ion acceleration and reflection on magnetotail antidipolarization fronts |
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