Magnetopause Reconnection and Indents Induced by Foreshock Turbulence
© 2021. The Authors. Geophysical Research Letters published by Wiley Periodicals LLC on behalf of American Geophysical Union.
| Veröffentlicht in: | Geophysical research letters. - 1984. - 48(2021), 11 vom: 16. Juni, Seite e2021GL093029 |
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| Weitere Verfasser: | , , |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2021
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| Zugriff auf das übergeordnete Werk: | Geophysical research letters |
| Schlagworte: | Journal Article collisionless shocks foreshock turbulence ion escape magnetopause reconnection magnetosheath planetary magnetospheres |
| Zusammenfassung: | © 2021. The Authors. Geophysical Research Letters published by Wiley Periodicals LLC on behalf of American Geophysical Union. Based on global hybrid simulation results, we predict that foreshock turbulence can reach the magnetopause and lead to reconnection as well as Earth-sized indents. Both the interplanetary magnetic field (IMF) and solar wind are constant in our simulation, and hence, all dynamics are generated by foreshock instabilities. The IMF in the simulation is mostly Sun-Earth aligned with a weak northward and zero dawn-dusk component, such that subsolar magnetopause reconnection is not expected without foreshock turbulence modifying the magnetosheath fields. We show a reconnection example to illustrate that the turbulence can create large magnetic shear angles across the magnetopause to induce local bursty reconnection. Magnetopause reconnection and indents developed from the impact of foreshock turbulence can potentially contribute to dayside loss of planetary plasmas |
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| Beschreibung: | Date Revised 02.04.2024 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
| ISSN: | 0094-8276 |
| DOI: | 10.1029/2021GL093029 |