Using the maximum entropy distribution to describe electrons in reconnecting current sheets
| dc.contributor.author | Ng, Jonathan | |
| dc.contributor.author | Hakim, Ammar | |
| dc.contributor.author | Bhattacharjee, A. | |
| dc.date.accessioned | 2021-07-27T15:44:31Z | |
| dc.date.available | 2021-07-27T15:44:31Z | |
| dc.date.issued | 2018-08-17 | |
| dc.description.abstract | Particle distributions in weakly collisional environments such as the magnetosphere have been observed to show deviations from the Maxwellian distribution. These can often be reproduced in kinetic simulations, but fluid models, which are used in global simulations of the magnetosphere, do not necessarily capture any of this. We apply the maximum entropy fluid closure of Levermore, which leads to well posed moment equations, to reconstruct particle distributions from a kinetic simulation in a reconnection region. Our results show that without information other than the moments, the model can reproduce the general structure of the distributions but not all of the finer details. The advantages of the closure over the traditional Grad closure are also discussed. | en_US |
| dc.description.sponsorship | This work was supported by DOE Contract No. DEAC02-09CH11466 and NSF Grant No. AGS-1338944. | en_US |
| dc.description.uri | https://aip.scitation.org/doi/10.1063/1.5041758 | en_US |
| dc.format.extent | 7 pages | en_US |
| dc.genre | journal articles | en_US |
| dc.identifier | doi:10.13016/m2qb5w-0b02 | |
| dc.identifier.citation | Ng, Jonathan; Hakim, Ammar; Bhattacharjee, A.; Using the maximum entropy distribution to describe electrons in reconnecting current sheets; Physics of Plasmas 25, 082113, 17 August, 2018; https://doi.org/10.1063/1.5041758 | en_US |
| dc.identifier.uri | https://doi.org/10.1063/1.5041758 | |
| dc.identifier.uri | http://hdl.handle.net/11603/22154 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | AIP Publishing | 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 Author(s). | |
| dc.title | Using the maximum entropy distribution to describe electrons in reconnecting current sheets | en_US |
| dc.type | Text | en_US |