Drift Instabilities in Thin Current Sheets Using a Two-Fluid Model With Pressure Tensor Effects
| dc.contributor.author | Ng, Jonathan | |
| dc.contributor.author | Hakim, Ammar | |
| dc.contributor.author | Juno, J. | |
| dc.contributor.author | Bhattacharjee, A. | |
| dc.date.accessioned | 2021-07-27T15:31:29Z | |
| dc.date.available | 2021-07-27T15:31:29Z | |
| dc.date.issued | 2019-04-15 | |
| dc.description.abstract | The integration of kinetic effects in fluid models is important for global simulations of the Earth's magnetosphere. We use a two-fluid 10-moment model, which includes the pressure tensor and has been used to study reconnection, to study the drift kink and lower hybrid drift instabilities. Using a nonlocal linear eigenmode analysis, we find that for the kink mode, the 10-moment model shows good agreement with kinetic calculations with the same closure model used in reconnection simulations, while the electromagnetic and electrostatic lower hybrid instabilities require modeling the effects of the ion resonance using a Landau fluid closure. Comparisons with kinetic simulations and the implications of the results for global magnetospheric simulations are discussed. | en_US |
| dc.description.sponsorship | J. Ng, A. Hakim, and A. Bhattacharjee are supported by NSF grantAGS-1338944 and DOE contractDE-AC02-09CH11466. The work of J.Juno was supported by a NASA Earth and Space Science Fellowship, grant80NSSC17K0428. This research used resources of the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility supported by the Office of Science of the U.S. Department of Energy under contract DE-AC02-05CH11231. Data for the figures are available online at Ng et al. (2018). We are grateful to J. Ten Barge for valuable discussions. The calculations in this work made use of the scipy library (Jones et al.,2001). | en_US |
| dc.description.uri | https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2018JA026313 | en_US |
| dc.format.extent | 16 pages | en_US |
| dc.genre | journal articles | en_US |
| dc.identifier | doi:10.13016/m2wucx-sakv | |
| dc.identifier.citation | Ng, Jonathan et al.; Drift Instabilities in Thin Current Sheets Using a Two-Fluid Model With Pressure Tensor Effects; Journal of Geophysical Research: Space Physics, 124, 5, p 3331-3346, 15 April, 2019; https://doi.org/10.1029/2018JA026313 | en_US |
| dc.identifier.uri | https://doi.org/10.1029/2018JA026313 | |
| dc.identifier.uri | http://hdl.handle.net/11603/22152 | |
| 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 | ©2018. American Geophysical Union. All Rights Reserved | |
| dc.title | Drift Instabilities in Thin Current Sheets Using a Two-Fluid Model With Pressure Tensor Effects | en_US |
| dc.type | Text | en_US |