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Magnetosphere-ionosphere energy interchange in the electron diffuse aurora
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Himwich, E. W. Glocer, Alex Khazanov, George V. |
| Copyright Year | 2014 |
| Description | The diffuse aurora has recently been shown to be a major contributor of energy flux into the Earth's ionosphere. Therefore, a comprehensive theoretical analysis is required to understand its role in energy redistribution in the coupled ionosphere-magnetosphere system. In previous theoretical descriptions of precipitated magnetospheric electrons (E is approximately 1 keV), the major focus has been the ionization and excitation rates of the neutral atmosphere and the energy deposition rate to thermal ionospheric electrons. However, these precipitating electrons will also produce secondary electrons via impact ionization of the neutral atmosphere. This paper presents the solution of the Boltzman-Landau kinetic equation that uniformly describes the entire electron distribution function in the diffuse aurora, including the affiliated production of secondary electrons (E greater than 600 eV) and their ionosphere-magnetosphere coupling processes. In this article, we discuss for the first time how diffuse electron precipitation into the atmosphere and the associated secondary electron production participate in ionosphere-magnetosphere energy redistribution. |
| File Size | 2237544 |
| Page Count | 14 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20140017833 |
| Archival Resource Key | ark:/13960/t3033v97j |
| Language | English |
| Publisher Date | 2014-01-01 |
| Access Restriction | Open |
| Subject Keyword | Diffuse Aurora Ionosphere Magnetosphere Plasma Layers Atmospheric Ionization Photoionization Flux Density Magnetosphere-ionosphere Coupling Auroras Ionization Electron Precipitation Plasmasphere Earth Ionosphere Electron Distribution Energy Transfer Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
