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is-tooltip-top" data-tooltip="Solar and Stellar Astrophysics">astro-ph.SR</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Space Physics">physics.space-ph</span> </div> </div> <p class="title is-5 mathjax"> Simulation Models for Exploring Magnetic Reconnection </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Shay%2C+M">Michael Shay</a>, <a href="/search/physics?searchtype=author&query=Adhikari%2C+S">Subash Adhikari</a>, <a href="/search/physics?searchtype=author&query=Beesho%2C+N">Naoki Beesho</a>, <a href="/search/physics?searchtype=author&query=Birn%2C+J">Joachim Birn</a>, <a href="/search/physics?searchtype=author&query=Buechner%2C+J">Jorg Buechner</a>, <a href="/search/physics?searchtype=author&query=Cassak%2C+P">Paul Cassak</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+L">Li-Jen Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y">Yuxi Chen</a>, <a href="/search/physics?searchtype=author&query=Cozzani%2C+G">Giulia Cozzani</a>, <a href="/search/physics?searchtype=author&query=Drake%2C+J">Jim Drake</a>, <a href="/search/physics?searchtype=author&query=Guo%2C+F">Fan Guo</a>, <a href="/search/physics?searchtype=author&query=Hesse%2C+M">Michael Hesse</a>, <a href="/search/physics?searchtype=author&query=Jain%2C+N">Neeraj Jain</a>, <a href="/search/physics?searchtype=author&query=Pfau-Kempf%2C+Y">Yann Pfau-Kempf</a>, <a href="/search/physics?searchtype=author&query=Lin%2C+Y">Yu Lin</a>, <a href="/search/physics?searchtype=author&query=Liu%2C+Y">Yi-Hsin Liu</a>, <a href="/search/physics?searchtype=author&query=Oka%2C+M">Mitsuo Oka</a>, <a href="/search/physics?searchtype=author&query=Omelchenko%2C+Y+A">Yuri A. Omelchenko</a>, <a href="/search/physics?searchtype=author&query=Palmroth%2C+M">Minna Palmroth</a>, <a href="/search/physics?searchtype=author&query=Pezzi%2C+O">Oreste Pezzi</a>, <a href="/search/physics?searchtype=author&query=Reiff%2C+P+H">Patricia H. Reiff</a>, <a href="/search/physics?searchtype=author&query=Swisdak%2C+M">Marc Swisdak</a>, <a href="/search/physics?searchtype=author&query=Toffoletto%2C+F">Frank Toffoletto</a>, <a href="/search/physics?searchtype=author&query=Toth%2C+G">Gabor Toth</a>, <a href="/search/physics?searchtype=author&query=Wolf%2C+R+A">Richard A. Wolf</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2406.05901v1-abstract-short" style="display: inline;"> Simulations have played a critical role in the advancement of our knowledge of magnetic reconnection. However, due to the inherently multiscale nature of reconnection, it is impossible to simulate all physics at all scales. For this reason, a wide range of simulation methods have been crafted to study particular aspects and consequences of magnetic reconnection. This chapter reviews many of these… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.05901v1-abstract-full').style.display = 'inline'; document.getElementById('2406.05901v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2406.05901v1-abstract-full" style="display: none;"> Simulations have played a critical role in the advancement of our knowledge of magnetic reconnection. However, due to the inherently multiscale nature of reconnection, it is impossible to simulate all physics at all scales. For this reason, a wide range of simulation methods have been crafted to study particular aspects and consequences of magnetic reconnection. This chapter reviews many of these methods, laying out critical assumptions, numerical techniques, and giving examples of scientific results. Plasma models described include magnetohydrodynamics (MHD), Hall MHD, Hybrid, kinetic particle-in-cell (PIC), kinetic Vlasov, Fluid models with embedded PIC, Fluid models with direct feedback from energetic populations, and the Rice Convection Model (RCM). <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.05901v1-abstract-full').style.display = 'none'; document.getElementById('2406.05901v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 June, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Chapter 5.2 of ISSI Book on Magnetic Reconnection, submitted to Space Science Reviews</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2312.07490">arXiv:2312.07490</a> <span> [<a href="https://arxiv.org/pdf/2312.07490">pdf</a>, <a href="https://arxiv.org/format/2312.07490">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Popular Physics">physics.pop-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Solar and Stellar Astrophysics">astro-ph.SR</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Space Physics">physics.space-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.3847/2515-5172/ad0b0d">10.3847/2515-5172/ad0b0d <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A Chromatic Treatment of Linear Polarization in the Solar Corona at the 2023 Total Solar Eclipse </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Patel%2C+R">Ritesh Patel</a>, <a href="/search/physics?searchtype=author&query=Seaton%2C+D+B">Daniel B. Seaton</a>, <a href="/search/physics?searchtype=author&query=Caspi%2C+A">Amir Caspi</a>, <a href="/search/physics?searchtype=author&query=Kovac%2C+S+A">Sarah A. Kovac</a>, <a href="/search/physics?searchtype=author&query=Davis%2C+S+J">Sarah J. Davis</a>, <a href="/search/physics?searchtype=author&query=Carini%2C+J+P">John P. Carini</a>, <a href="/search/physics?searchtype=author&query=Gardner%2C+C+H">Charles H. Gardner</a>, <a href="/search/physics?searchtype=author&query=Gosain%2C+S">Sanjay Gosain</a>, <a href="/search/physics?searchtype=author&query=Klein%2C+V">Viliam Klein</a>, <a href="/search/physics?searchtype=author&query=Laatsch%2C+S+A">Shawn A. Laatsch</a>, <a href="/search/physics?searchtype=author&query=Reiff%2C+P+H">Patricia H. Reiff</a>, <a href="/search/physics?searchtype=author&query=Saini%2C+N">Nikita Saini</a>, <a href="/search/physics?searchtype=author&query=Weir%2C+R">Rachael Weir</a>, <a href="/search/physics?searchtype=author&query=Zietlow%2C+D+W">Daniel W. Zietlow</a>, <a href="/search/physics?searchtype=author&query=Elmore%2C+D+F">David F. Elmore</a>, <a href="/search/physics?searchtype=author&query=Ursache%2C+A+E">Andrei E. Ursache</a>, <a href="/search/physics?searchtype=author&query=DeForest%2C+C+E">Craig E. DeForest</a>, <a href="/search/physics?searchtype=author&query=West%2C+M+J">Matthew J. West</a>, <a href="/search/physics?searchtype=author&query=Bruenjes%2C+F">Fred Bruenjes</a>, <a href="/search/physics?searchtype=author&query=Winter%2C+J">Jen Winter</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2312.07490v1-abstract-short" style="display: inline;"> The broadband solar K-corona is linearly polarized due to Thomson scattering. Various strategies have been used to represent coronal polarization. Here, we present a new way to visualize the polarized corona, using observations from the 2023 April 20 total solar eclipse in Australia in support of the Citizen CATE 2024 project. We convert observations in the common four-polarizer orthogonal basis (… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2312.07490v1-abstract-full').style.display = 'inline'; document.getElementById('2312.07490v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2312.07490v1-abstract-full" style="display: none;"> The broadband solar K-corona is linearly polarized due to Thomson scattering. Various strategies have been used to represent coronal polarization. Here, we present a new way to visualize the polarized corona, using observations from the 2023 April 20 total solar eclipse in Australia in support of the Citizen CATE 2024 project. We convert observations in the common four-polarizer orthogonal basis (0掳, 45掳, 90掳, & 135掳) to -60掳, 0掳, and +60掳 (MZP) polarization, which is homologous to R, G, B color channels. The unique image generated provides some sense of how humans might visualize polarization if we could perceive it in the same way we perceive color. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2312.07490v1-abstract-full').style.display = 'none'; document.getElementById('2312.07490v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">4 pages, 1 figure; accepted for publication in Research Notes of the American Astronomical Society (RNAAS)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Research Notes of the AAS, Vol. 7, Issue 11, 241; 2023 November </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2311.05411">arXiv:2311.05411</a> <span> [<a href="https://arxiv.org/pdf/2311.05411">pdf</a>, <a href="https://arxiv.org/format/2311.05411">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Space Physics">physics.space-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Plasma Physics">physics.plasm-ph</span> </div> </div> <p class="title is-5 mathjax"> Multi-scale observation of magnetotail reconnection onset: 2. microscopic dynamics </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Genestreti%2C+K+J">K. J. Genestreti</a>, <a href="/search/physics?searchtype=author&query=Farrugia%2C+C">C. Farrugia</a>, <a href="/search/physics?searchtype=author&query=Lu%2C+S">S. Lu</a>, <a href="/search/physics?searchtype=author&query=Vines%2C+S+K">S. K. Vines</a>, <a href="/search/physics?searchtype=author&query=Reiff%2C+P+H">P. H. Reiff</a>, <a href="/search/physics?searchtype=author&query=Phan%2C+T+-">T. -D. Phan</a>, <a href="/search/physics?searchtype=author&query=Baker%2C+D+N">D. N. Baker</a>, <a href="/search/physics?searchtype=author&query=Leonard%2C+T+W">T. W. Leonard</a>, <a href="/search/physics?searchtype=author&query=Burch%2C+J+L">J. L. Burch</a>, <a href="/search/physics?searchtype=author&query=Bingham%2C+S+T">S. T. Bingham</a>, <a href="/search/physics?searchtype=author&query=Cohen%2C+I+J">I. J. Cohen</a>, <a href="/search/physics?searchtype=author&query=Shuster%2C+J+R">J. R. Shuster</a>, <a href="/search/physics?searchtype=author&query=Gershman%2C+D+J">D. J. Gershman</a>, <a href="/search/physics?searchtype=author&query=Mouikis%2C+C+G">C. G. Mouikis</a>, <a href="/search/physics?searchtype=author&query=Rogers%2C+A+T">A. T. Rogers</a>, <a href="/search/physics?searchtype=author&query=Torbert%2C+R+B">R. B. Torbert</a>, <a href="/search/physics?searchtype=author&query=Trattner%2C+K+J">K. J. Trattner</a>, <a href="/search/physics?searchtype=author&query=Webster%2C+J+M">J. M. Webster</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+L+-">L. -J. Chen</a>, <a href="/search/physics?searchtype=author&query=Giles%2C+B+L">B. L. Giles</a>, <a href="/search/physics?searchtype=author&query=Ahmadi%2C+N">N. Ahmadi</a>, <a href="/search/physics?searchtype=author&query=Ergun%2C+R+E">R. E. Ergun</a>, <a href="/search/physics?searchtype=author&query=Russell%2C+C+T">C. T. Russell</a>, <a href="/search/physics?searchtype=author&query=Strangeway%2C+R+J">R. J. Strangeway</a>, <a href="/search/physics?searchtype=author&query=Nakamura%2C+R">R. Nakamura</a> , et al. (1 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2311.05411v1-abstract-short" style="display: inline;"> We analyze the local dynamics of magnetotail reconnection onset using Magnetospheric Multiscale (MMS) data. In conjunction with MMS, the macroscopic dynamics of this event were captured by a number of other ground and space-based observatories, as is reported in a companion paper. We find that the local dynamics of the onset were characterized by the rapid thinning of the cross-tail current sheet… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.05411v1-abstract-full').style.display = 'inline'; document.getElementById('2311.05411v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2311.05411v1-abstract-full" style="display: none;"> We analyze the local dynamics of magnetotail reconnection onset using Magnetospheric Multiscale (MMS) data. In conjunction with MMS, the macroscopic dynamics of this event were captured by a number of other ground and space-based observatories, as is reported in a companion paper. We find that the local dynamics of the onset were characterized by the rapid thinning of the cross-tail current sheet below the ion inertial scale, accompanied by the growth of flapping waves and the subsequent onset of electron tearing. Multiple kinetic-scale magnetic islands were detected coincident with the growth of an initially sub-Alfv茅nic, demagnetized tailward ion exhaust. The onset and rapid enhancement of parallel electron inflow at the exhaust boundary was a remote signature of the intensification of reconnection Earthward of the spacecraft. Two secondary reconnection sites are found embedded within the exhaust from a primary X-line. The primary X-line was designated as such on the basis that (1) while multiple jet reversals were observed in the current sheet, only one reversal of the electron inflow was observed at the high-latitude exhaust boundary, (2) the reconnection electric field was roughly 5 times larger at the primary X-line than the secondary X-lines, and (3) energetic electron fluxes increased and transitioned from anti-field-aligned to isotropic during the primary X-line crossing, indicating a change in magnetic topology. The results are consistent with the idea that a primary X-line mediates the reconnection of lobe magnetic field lines and accelerates electrons more efficiently than its secondary X-line counterparts. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.05411v1-abstract-full').style.display = 'none'; document.getElementById('2311.05411v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">In press, JGR Space Physics, JGRA58162</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2311.05405">arXiv:2311.05405</a> <span> [<a href="https://arxiv.org/pdf/2311.05405">pdf</a>, <a href="https://arxiv.org/format/2311.05405">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Space Physics">physics.space-ph</span> </div> </div> <p class="title is-5 mathjax"> Multi-scale observation of magnetotail reconnection onset: 1. macroscopic dynamics </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Genestreti%2C+K+J">K. J. Genestreti</a>, <a href="/search/physics?searchtype=author&query=Farrugia%2C+C">C. Farrugia</a>, <a href="/search/physics?searchtype=author&query=Lu%2C+S">S. Lu</a>, <a href="/search/physics?searchtype=author&query=Vines%2C+S+K">S. K. Vines</a>, <a href="/search/physics?searchtype=author&query=Reiff%2C+P+H">P. H. Reiff</a>, <a href="/search/physics?searchtype=author&query=Phan%2C+T+-">T. -D. Phan</a>, <a href="/search/physics?searchtype=author&query=Baker%2C+D+N">D. N. Baker</a>, <a href="/search/physics?searchtype=author&query=Leonard%2C+T+W">T. W. Leonard</a>, <a href="/search/physics?searchtype=author&query=Burch%2C+J+L">J. L. Burch</a>, <a href="/search/physics?searchtype=author&query=Bingham%2C+S+T">S. T. Bingham</a>, <a href="/search/physics?searchtype=author&query=Cohen%2C+I+J">I. J. Cohen</a>, <a href="/search/physics?searchtype=author&query=Shuster%2C+J+R">J. R. Shuster</a>, <a href="/search/physics?searchtype=author&query=Gershman%2C+D+J">D. J. Gershman</a>, <a href="/search/physics?searchtype=author&query=Mouikis%2C+C+G">C. G. Mouikis</a>, <a href="/search/physics?searchtype=author&query=Rogers%2C+A+T">A. T. Rogers</a>, <a href="/search/physics?searchtype=author&query=Torbert%2C+R+B">R. B. Torbert</a>, <a href="/search/physics?searchtype=author&query=Trattner%2C+K+J">K. J. Trattner</a>, <a href="/search/physics?searchtype=author&query=Webster%2C+J+M">J. M. Webster</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+L+-">L. -J. Chen</a>, <a href="/search/physics?searchtype=author&query=Giles%2C+B+L">B. L. Giles</a>, <a href="/search/physics?searchtype=author&query=Ahmadi%2C+N">N. Ahmadi</a>, <a href="/search/physics?searchtype=author&query=Ergun%2C+R+E">R. E. Ergun</a>, <a href="/search/physics?searchtype=author&query=Russell%2C+C+T">C. T. Russell</a>, <a href="/search/physics?searchtype=author&query=Strangeway%2C+R+J">R. J. Strangeway</a>, <a href="/search/physics?searchtype=author&query=Nakamura%2C+R">R. Nakamura</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2311.05405v1-abstract-short" style="display: inline;"> We analyze a magnetotail reconnection onset event on 3 July 2017 that was observed under otherwise quiescent magnetospheric conditions by a fortuitous conjunction of six space and ground-based observatories. The study investigates the large-scale coupling of the solar wind - magnetosphere system that precipitated the onset of the magnetotail reconnection, focusing on the processes that thinned and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.05405v1-abstract-full').style.display = 'inline'; document.getElementById('2311.05405v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2311.05405v1-abstract-full" style="display: none;"> We analyze a magnetotail reconnection onset event on 3 July 2017 that was observed under otherwise quiescent magnetospheric conditions by a fortuitous conjunction of six space and ground-based observatories. The study investigates the large-scale coupling of the solar wind - magnetosphere system that precipitated the onset of the magnetotail reconnection, focusing on the processes that thinned and stretched the cross-tail current layer in the absence of significant flux loading during a two-hour-long preconditioning phase. It is demonstrated with data in the (1) upstream solar wind, (2) at the low-latitude magnetopause, (3) in the high-latitude polar cap, and (4) in the magnetotail that the typical picture of solar wind-driven current sheet thinning via flux loading does not appear relevant for this particular event. We find that the current sheet thinning was, instead, initiated by a transient solar wind pressure pulse and that the current sheet thinning continued even as the magnetotail and solar wind pressures decreased. We suggest that field line curvature induced scattering (observed by Magnetospheric Multiscale (MMS)) and precipitation (observed by Defense Meteorological Satellite Program (DMSP)) of high-energy thermal protons may have evacuated plasma sheet thermal energy, which may require a thinning of the plasma sheet to preserve pressure equilibrium with the solar wind. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.05405v1-abstract-full').style.display = 'none'; document.getElementById('2311.05405v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">In press, JGR space physics, JGRA58161</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2307.05867">arXiv:2307.05867</a> <span> [<a href="https://arxiv.org/pdf/2307.05867">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Space Physics">physics.space-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Earth and Planetary Astrophysics">astro-ph.EP</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Plasma Physics">physics.plasm-ph</span> </div> </div> <p class="title is-5 mathjax"> Advanced methods for analyzing in-situ observations of magnetic reconnection </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Hasegawa%2C+H">H. Hasegawa</a>, <a href="/search/physics?searchtype=author&query=Argall%2C+M+R">M. R. Argall</a>, <a href="/search/physics?searchtype=author&query=Aunai%2C+N">N. Aunai</a>, <a href="/search/physics?searchtype=author&query=Bandyopadhyay%2C+R">R. Bandyopadhyay</a>, <a href="/search/physics?searchtype=author&query=Bessho%2C+N">N. Bessho</a>, <a href="/search/physics?searchtype=author&query=Cohen%2C+I+J">I. J. Cohen</a>, <a href="/search/physics?searchtype=author&query=Denton%2C+R+E">R. E. Denton</a>, <a href="/search/physics?searchtype=author&query=Dorelli%2C+J+C">J. C. Dorelli</a>, <a href="/search/physics?searchtype=author&query=Egedal%2C+J">J. Egedal</a>, <a href="/search/physics?searchtype=author&query=Fuselier%2C+S+A">S. A. Fuselier</a>, <a href="/search/physics?searchtype=author&query=Garnier%2C+P">P. Garnier</a>, <a href="/search/physics?searchtype=author&query=Genot%2C+V">V. Genot</a>, <a href="/search/physics?searchtype=author&query=Graham%2C+D+B">D. B. Graham</a>, <a href="/search/physics?searchtype=author&query=Hwang%2C+K+J">K. J. Hwang</a>, <a href="/search/physics?searchtype=author&query=Khotyaintsev%2C+Y+V">Y. V. Khotyaintsev</a>, <a href="/search/physics?searchtype=author&query=Korovinskiy%2C+D+B">D. B. Korovinskiy</a>, <a href="/search/physics?searchtype=author&query=Lavraud%2C+B">B. Lavraud</a>, <a href="/search/physics?searchtype=author&query=Lenouvel%2C+Q">Q. Lenouvel</a>, <a href="/search/physics?searchtype=author&query=Li%2C+T+C">T. C. Li</a>, <a href="/search/physics?searchtype=author&query=Liu%2C+Y+-">Y. -H. Liu</a>, <a href="/search/physics?searchtype=author&query=de+Welle%2C+B+M">B. Michotte de Welle</a>, <a href="/search/physics?searchtype=author&query=Nakamura%2C+T+K+M">T. K. M. Nakamura</a>, <a href="/search/physics?searchtype=author&query=Payne%2C+D+S">D. S. Payne</a>, <a href="/search/physics?searchtype=author&query=Petrinec%2C+S+M">S. M. Petrinec</a>, <a href="/search/physics?searchtype=author&query=Qi%2C+Y">Y. Qi</a> , et al. (11 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2307.05867v3-abstract-short" style="display: inline;"> There is ample evidence for magnetic reconnection in the solar system, but it is a nontrivial task to visualize, to determine the proper approaches and frames to study, and in turn to elucidate the physical processes at work in reconnection regions from in-situ measurements of plasma particles and electromagnetic fields. Here an overview is given of a variety of single- and multi-spacecraft data a… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2307.05867v3-abstract-full').style.display = 'inline'; document.getElementById('2307.05867v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2307.05867v3-abstract-full" style="display: none;"> There is ample evidence for magnetic reconnection in the solar system, but it is a nontrivial task to visualize, to determine the proper approaches and frames to study, and in turn to elucidate the physical processes at work in reconnection regions from in-situ measurements of plasma particles and electromagnetic fields. Here an overview is given of a variety of single- and multi-spacecraft data analysis techniques that are key to revealing the context of in-situ observations of magnetic reconnection in space and for detecting and analyzing the diffusion regions where ions and/or electrons are demagnetized. We focus on recent advances in the era of the Magnetospheric Multiscale mission, which has made electron-scale, multi-point measurements of magnetic reconnection in and around Earth's magnetosphere. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2307.05867v3-abstract-full').style.display = 'none'; document.getElementById('2307.05867v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 June, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 11 July, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">submitted to Space Science Reviews (116 pages, incl. 31 figures, 7 tables)</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1712.09866">arXiv:1712.09866</a> <span> [<a href="https://arxiv.org/pdf/1712.09866">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Space Physics">physics.space-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1029/2018JA025245">10.1029/2018JA025245 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Magnetospheric Multiscale Dayside Reconnection Electron Diffusion Region Events </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Webster%2C+J+M">J. M. Webster</a>, <a href="/search/physics?searchtype=author&query=Burch%2C+J+L">J. L. Burch</a>, <a href="/search/physics?searchtype=author&query=Reiff%2C+P+H">P. H. Reiff</a>, <a href="/search/physics?searchtype=author&query=Graham%2C+D+B">D. B. Graham</a>, <a href="/search/physics?searchtype=author&query=Torbert%2C+R+B">R. B. Torbert</a>, <a href="/search/physics?searchtype=author&query=Ergun%2C+R+E">R. E. Ergun</a>, <a href="/search/physics?searchtype=author&query=Daou%2C+A+G">A. G. Daou</a>, <a href="/search/physics?searchtype=author&query=Sazykin%2C+S+Y">S. Y. Sazykin</a>, <a href="/search/physics?searchtype=author&query=Marshall%2C+A">A. Marshall</a>, <a href="/search/physics?searchtype=author&query=Allen%2C+R+C">R. C. Allen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+L+-">L. -J. Chen</a>, <a href="/search/physics?searchtype=author&query=Wang%2C+S">S. Wang</a>, <a href="/search/physics?searchtype=author&query=Phan%2C+T+D">T. D. Phan</a>, <a href="/search/physics?searchtype=author&query=Genestreti%2C+K+J">K. J. Genestreti</a>, <a href="/search/physics?searchtype=author&query=Giles%2C+B+L">B. L. Giles</a>, <a href="/search/physics?searchtype=author&query=Moore%2C+T+E">T. E. Moore</a>, <a href="/search/physics?searchtype=author&query=Fuselier%2C+S+A">S. A. Fuselier</a>, <a href="/search/physics?searchtype=author&query=Cozzani%2C+G">G. Cozzani</a>, <a href="/search/physics?searchtype=author&query=Russell%2C+C+T">C. T. Russell</a>, <a href="/search/physics?searchtype=author&query=Eriksson%2C+S">S. Eriksson</a>, <a href="/search/physics?searchtype=author&query=Rager%2C+A+C">A. C. Rager</a>, <a href="/search/physics?searchtype=author&query=Broll%2C+J+M">J. M. Broll</a>, <a href="/search/physics?searchtype=author&query=Goodrich%2C+K">K. Goodrich</a>, <a href="/search/physics?searchtype=author&query=Wilder%2C+F">F. Wilder</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1712.09866v1-abstract-short" style="display: inline;"> We have used the high-resolution data of the Magnetospheric Multiscale (MMS) mission dayside phase to identify twenty-one previously unreported encounters with the electron diffusion region (EDR), as evidenced by electron agyrotropy, ion jet reversals, and j dot E greater than 0. Three of the new EDR encounters, which occurred within a one-minute-long interval on November 23rd, 2016, are analyzed… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1712.09866v1-abstract-full').style.display = 'inline'; document.getElementById('1712.09866v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1712.09866v1-abstract-full" style="display: none;"> We have used the high-resolution data of the Magnetospheric Multiscale (MMS) mission dayside phase to identify twenty-one previously unreported encounters with the electron diffusion region (EDR), as evidenced by electron agyrotropy, ion jet reversals, and j dot E greater than 0. Three of the new EDR encounters, which occurred within a one-minute-long interval on November 23rd, 2016, are analyzed in detail. These events, which resulted from a relatively low and oscillating magnetopause velocity, contained large electric fields (several tens to hundreds of milliVolts per meter), crescent-shaped electron velocity phase space densities, large currents (greater than 2 microAmperes per square meter), and Ohmic heating of the plasma (near or exceeding 10 nanoWatts per cubic meter). Because of the slow in-and-out motion of the magnetopause, two of these events show the unprecedented mixture of perpendicular and parallel crescents, indicating the first breaking and reconnecting of solar wind and magnetospheric field lines. An extended list of thirty-two EDR or near-EDR events is also included, and demonstrates a wide variety of observed plasma behavior inside and surrounding the reconnection site. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1712.09866v1-abstract-full').style.display = 'none'; document.getElementById('1712.09866v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 December, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2017. </p> </li> </ol> <div class="is-hidden-tablet"> <!-- feedback for mobile only --> <span class="help" style="display: inline-block;"><a href="https://github.com/arXiv/arxiv-search/releases">Search v0.5.6 released 2020-02-24</a> </span> </div> </div> </main> <footer> <div class="columns is-desktop" role="navigation" aria-label="Secondary"> <!-- MetaColumn 1 --> 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