Magnetopause Reconnection and Indents Induced by Foreshock Turbulence
| dc.contributor.author | Chen, Li-Jen | |
| dc.contributor.author | Ng, Jonathan | |
| dc.contributor.author | Omelchenko, Yuri | |
| dc.contributor.author | Wang, Shan | |
| dc.date.accessioned | 2021-07-28T14:48:57Z | |
| dc.date.available | 2021-07-28T14:48:57Z | |
| dc.date.issued | 2021-05-31 | |
| dc.description.abstract | Abstract 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. Plain Language Summary Turbulence structures are commonly generated as ions reflected by planetary bow shocks interact with the incoming solar wind. We use a large-scale simulation treating ions as particles and electrons as a fluid to investigate the impact of these turbulence structures on the magnetopsheres. Based on the simulation results, we predict that the turbulence can open magnetic field lines on the dayside and lead to planet-sized indents. Our work unfolds a potential pathway through which planetary plasmas can escape to the upstream solar wind. | en_US |
| dc.description.sponsorship | The research was supported in part by the MMS mission, DOE grants DESC0016278, DESC0020058, NSF AGS-1619584, AGS-2010231, and NASA 80NSSC18K1369 and 80NSSC19K0838. The authors thank Johnny Zhang, Michael Heinsohn, Nancy Carney, and other NASA Advanced-Supercomputing and High-End-Computing team members for their professional support to make the simulation possible. The simulation ran on 640 Pleiades Ivy Bridge nodes for 22 hours. | en_US |
| dc.description.uri | https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2021GL093029 | en_US |
| dc.format.extent | 7 pages | en_US |
| dc.genre | journal articles | en_US |
| dc.identifier | doi:10.13016/m27ynn-nm5r | |
| dc.identifier.citation | Chen, Li-Jen et al.; Magnetopause Reconnection and Indents Induced by Foreshock Turbulence; Geophysical Research Letters, 48, 11, 31 May, 2021; https://doi.org/10.1029/2021GL093029 | en_US |
| dc.identifier.uri | https://doi.org/10.1029/2021GL093029 | |
| dc.identifier.uri | http://hdl.handle.net/11603/22194 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | American Geophysical Union | en_US |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Goddard Planetary Heliophysics Institute (GPHI) | |
| dc.rights | This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author. | |
| dc.rights | Public Domain Mark 1.0 | * |
| dc.rights | This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law. | |
| dc.rights.uri | http://creativecommons.org/publicdomain/mark/1.0/ | * |
| dc.title | Magnetopause Reconnection and Indents Induced by Foreshock Turbulence | en_US |
| dc.type | Text | en_US |