Electron Energization at a Reconnecting Magnetosheath Current Sheet

Eriksson Elin; Vaivads Andris; Graham Daniel B.; Divin Andrey; Khotyaintsev Yuri V.; Yordanova Emiliya; André Mats; Giles Barbara L.; Pollock Craig J.; Russell Christopher T.; Contel Olivier Le; Torbert Roy B.; Ergun Robert E.; Lindqvist Per‐Arne; Burch James L.

摘要

Abstract >We present observations of electron energization within a sub‐ion‐scale magnetosheath current sheet (CS). A number of signatures indicate ongoing reconnection, including the thickness of the CS (～0.7 ion inertial length), nonzero normal magnetic field, Hall magnetic fields with electrons carrying the Hall currents, and electron heating. We observe localized electron acceleration and heating parallel to the magnetic field at the edges of the CS. Electrostatic waves observed in these regions have low phase velocity and small wave potentials and thus cannot provide the observed acceleration and heating. Instead, we find that the electrons are accelerated by a parallel potential within the separatrix regions. Similar acceleration has been reported based on magnetopause and magnetotail observations. Thus, despite the different plasma conditions in magnetosheath, magnetopause, and magnetotail, the acceleration mechanism and corresponding heating of electrons is similar. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract Type =“Main”XML：Lang =“en”XML：ID =“GRL57856-ABS-ABS-ABS-0001”> <标题类型=“MAIN”> Abstract </ Title> <P>我们在a内显示电子通电的观察子离子级磁性磁性床（CS）。许多签名表示正在进行的重新连接，包括CS（〜0.7离子惯性长度）的厚度，非零正常磁场，具有携带霍尔电流的电子的霍尔磁场和电子加热。我们观察局部电子加速度和平行于CS边缘处的磁场的加热。在这些区域中观察到的静电波具有低相速度和小波电位，因此不能提供观察到的加速和加热。相反，我们发现电子通过分离区域内的并联电位加速。根据磁页和磁靶观察报告了类似的加速度。因此，尽管在磁性惰性，磁档和磁靶中具有不同的等离子体条件，但加速机构和电子的相应加热相似。</ p> </摘要> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-23539/'>《Geophysical Research Letters》</a> <b style="margin: 0 2px;">|</b><span>2018年第16期</span><b style="margin: 0 2px;">|</b><span>共10页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Eriksson Elin&option=202" target="_blank" rel="nofollow">Eriksson Elin;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Vaivads Andris&option=202" target="_blank" rel="nofollow">Vaivads Andris;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Graham Daniel B.&option=202" target="_blank" rel="nofollow">Graham Daniel B.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Divin Andrey&option=202" target="_blank" rel="nofollow">Divin Andrey;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Khotyaintsev Yuri V.&option=202" target="_blank" rel="nofollow">Khotyaintsev Yuri V.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Yordanova Emiliya&option=202" target="_blank" rel="nofollow">Yordanova Emiliya;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=André Mats&option=202" target="_blank" rel="nofollow">André Mats;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Giles Barbara L.&option=202" target="_blank" rel="nofollow">Giles Barbara L.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Pollock Craig J.&option=202" target="_blank" rel="nofollow">Pollock Craig J.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Russell Christopher T.&option=202" target="_blank" rel="nofollow">Russell Christopher T.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Contel Olivier Le&option=202" target="_blank" rel="nofollow">Contel Olivier Le;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Torbert Roy B.&option=202" target="_blank" rel="nofollow">Torbert Roy B.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Ergun Robert E.&option=202" target="_blank" rel="nofollow">Ergun Robert E.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Lindqvist Per‐Arne&option=202" target="_blank" rel="nofollow">Lindqvist Per‐Arne;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Burch James L.&option=202" target="_blank" rel="nofollow">Burch James L.;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>Swedish Institute of Space PhysicsUppsala Sweden;</p> <p>Swedish Institute of Space PhysicsUppsala Sweden;</p> <p>Swedish Institute of Space PhysicsUppsala Sweden;</p> <p>Swedish Institute of Space PhysicsUppsala Sweden;</p> <p>Swedish Institute of Space PhysicsUppsala Sweden;</p> <p>Swedish Institute of Space PhysicsUppsala Sweden;</p> <p>Swedish Institute of Space PhysicsUppsala Sweden;</p> <p>NASA Goddard Space Flight CenterGreenbelt MD USA;</p> <p>Denali Scientific LLCHealy AK USA;</p> <p>Department of Earth Planetary and Space SciencesUniversity of CaliforniaLos Angeles CA USA;</p> <p>Laboratoire de Physique des Plasmas CNRS/Ecole Polytechnique/Sorbonne Université/Université Paris‐Sud/Observatoire de ParisParis France;</p> <p>Department of PhysicsUniversity of New HampshireDurham NH USA;</p> <p>Laboratory of Atmospheric and Space PhysicsUniversity of Colorado BoulderBoulder CO USA;</p> <p>Department of Space and Plasma PhysicsKTH Royal Institute of TechnologyStockholm Sweden;</p> <p>Southwest Research InstituteSan Antonio TX USA;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/163.html" title="地球物理学">地球物理学;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=magnetic reconnection&option=203" rel="nofollow">magnetic reconnection;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=magnetosheath&option=203" rel="nofollow">magnetosheath;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=electron heating&option=203" rel="nofollow">electron heating;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=electron acceleration&option=203" rel="nofollow">electron acceleration;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Magnetospheric Multiscale&option=203" rel="nofollow">Magnetospheric Multiscale;</a> </p> <div class="translation"> 机译：磁性重新连接;磁性加热;电子加速;磁体多尺度; </div> </li> </ul> </div> </div> <div class="literature cardcommon" id="literaturereference" style="display:none"> <div class="similarity "> <h3 class="all_title" id="enpatent111">引文网络</h3> <div class="referencetab clearfix"> <ul id="referencedaohang"> <li dataid="referenceul">参考文献</li> <li dataid="citationul">引证文献</li> <li dataid="commonreferenceul">共引文献</li> <li dataid="commoncitationul">同被引文献</li> <li dataid="tworeferenceul">二级参考文献</li> <li dataid="twocitationul">二级引证文献</li> </ul> </div> <div class="reference_details" id="referenceList"> <ul 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href="/patent-detail/06130493377583.html">ELECTRONIC SYSTEMS FOR ENERGIZING DIRECT-CURRENT MOTORS FROM AN ALTERNATING CURRENT SUPPLY</a> <b>[P]</b> . <span> 外国专利：  CA478219A </span> <span> . 1951-10-30</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：用于从交流电中给直流电通电的电子系统 </span> </p> </li> </ul> </div> </div> </div> <div class="theme cardcommon" style="overflow: auto;display:none"> <h3 class="all_title" id="enpatent55">相关主题</h3> <ul id="subject"> </ul> </div> </div> </div> </div> <div class="right rightcon"> <div class="details_img cardcommon clearfix" style="margin-bottom: 10px;display:none;" > </div> </div> </div> <div id="thesis_get_original1" class="downloadBth" style="bottom: 19px;z-index: 999;" onclick="ywcd('0704019850787','4',7,2,1,'',this,24)" class="delivery" prompt="010401" title="通过人工服务将文献原文发送至邮箱" >获取原文</div> <div class="journalsub-pop-up" 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