Report
Kinetic Alfven Wave Electron Acceleration on Auroral Field Lines: Summary of Research
NASA Technical Reports Server, 20010081949
National Aeronautics and Space Administration
01/17/2001
Abstract
Major results of the S3-3 Langmuir sweep study are published. Studies show statistics and average density and temperature variation on auroral field lines up to 8000 km altitude. Alfven wave papers were published. Our model of Alfven wave propagation on auroral field lines was successfully extended to handle varying density and magnetic field for the inertial mode. The study showed that Alfven wave can create time-dispersed electron signatures. A study was undertaken to extend Langmuir sweep I-V curves to handle the case of an kappa electron distribution as well as Maxwellian. The manuscript is in preparation. Participated in International Space Science Institute study of Alfvenic structures which resulted in a group review paper. The proposed work was to develop an extended model of Alfven wave propagation along auroral field lines to study electron acceleration. As part of this work, a major task was to characterize density and temperature along auroral field lines by using spacecraft Langmuir sweep data. The work that was completed under this funding was successful at both tasks. Three papers have been published as part of this work and a fourth manuscript is in preparation.
Details
- Title: Subtitle
- Kinetic Alfven Wave Electron Acceleration on Auroral Field Lines: Summary of Research
- Creators
- Craig A. Kletzing - University of Iowa, Physics and Astronomy
- Resource Type
- Report
- Publication Details
- NASA Technical Reports Server, 20010081949
- Publisher
- National Aeronautics and Space Administration; Goddard Space Flight Center
- Number of pages
- 5 pages
- Grant note
- CONTRACT_GRANT: NAG5-6525
- Language
- English
- Date collected
- 09/01/1997 - 02/28/2001
- Date published
- 01/17/2001
- Description audience
- PUBLIC
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984442209902771
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