This Is Auburn

Show simple item record

Structure and Coalescence of Magnetopause Flux Ropes and Their Dependence on IMF Clock Angle: Three-Dimensional Global Hybrid Simulations


Metadata FieldValueLanguage
dc.creatorGuo, Jin
dc.creatorLu, San
dc.creatorLu, Quanming
dc.creatorLin, Yu
dc.creatorWang, Xueyi
dc.creatorHuang, Kai
dc.creatorWang, Rongsheng
dc.creatorWang, Shui
dc.date.accessioned2022-11-01T21:39:50Z
dc.date.available2022-11-01T21:39:50Z
dc.date.created2021
dc.identifier10.1029/2020JA028670en_US
dc.identifier.urihttps://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2020JA028670en_US
dc.identifier.urihttps://aurora.auburn.edu/handle/11200/50447
dc.identifier.urihttp://dx.doi.org/10.35099/aurora-515
dc.description.abstractFlux ropes are ubiquitous at Earth's magnetopause and play important roles in energy transport between the solar wind and Earth's magnetosphere. In this study, structure and coalescence of the magnetopause flux ropes formed by multiple X line reconnection in cases with different southward interplanetary magnetic field (IMF) clock angles are investigated by using three-dimensional global hybrid simulations. As the IMF clock angle decreases from 180 degrees, the axial direction of the flux ropes becomes tilted relative to the equatorial plane, the length of the flux ropes gradually increases, and core field within flux ropes is formed by the increase in the guide field. The flux ropes are formed mostly near the subsolar point and then move poleward toward cusps. The flux ropes can eventually enter the cusps, during which their helical structure collapses, their core field weakens gradually, and their axial length decreases. When the IMF clock angle is large (i.e., the IMF is predominantly southward), the flux ropes can coalesce and form new ones with larger diameter. The coalescence between flux ropes can occur both near the subsolar point when they are newly formed and away from the subsolar point (e.g., in the southern hemisphere) when they move toward cusps. However, when the IMF clock angle is small (<= 135 degrees), we do not find coalescence between flux ropes.en_US
dc.formatPDFen_US
dc.publisherAmerican Geophysical Unionen_US
dc.relation.ispartofJOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICSen_US
dc.relation.ispartofseries2169-9380en_US
dc.rights©American Geophysical Union 2021. This is this the version of record co-published by the American Geophysical Union and John Wiley & Sons, Inc. It is made available under the CC-BY-NC-ND 4.0 license. Item should be cited as: Guo, J., Lu, S., Lu, Q., Lin, Y., Wang, X., Huang, K., ... & Wang, S. (2021). Structure and coalescence of magnetopause flux ropes and their dependence on IMF clock angle: Three‐dimensional global hybrid simulations. Journal of Geophysical Research: Space Physics, 126(2), e2020JA028670.en_US
dc.titleStructure and Coalescence of Magnetopause Flux Ropes and Their Dependence on IMF Clock Angle: Three-Dimensional Global Hybrid Simulationsen_US
dc.typeTexten_US
dc.type.genreJournal Article, Academic Journalen_US
dc.citation.volume126en_US
dc.citation.issue2en_US
dc.description.statusPublisheden_US
dc.description.peerreviewYesen_US
dc.creator.orcid0000-0003-3041-2682en_US
dc.creator.orcid0000-0002-9950-1029en_US

Files in this item

Show simple item record