| タイトル | Generation and propagation of electromagnetic waves in the magnetosphere |
| 本文（外部サイト） | http://hdl.handle.net/2060/19730022631 |
| 著者（英） | Taylor, W. W. L. |
| 著者所属（英） | Iowa Univ. |
| 発行日 | 1973-05-01 |
| 言語 | eng |
| 内容記述 | Characteristics of broadband ELF, VLF, and LF emissions in the magnetosphere were calculated assuming incoherent Cerenkov radiation from magnetospheric electrons with energies from 50 eV to 50 keV. Calculations were included to determine the ray paths of the emitted waves. A diffusive equilibrium model of the magnetosphere with an ionosphere, plasmapause, and a centered dipole magnetic field was used. Ray path calculations were done in three dimensions. Using simultaneous energetic electron and VLF data, comparisons were made between calculated and observed VLF hiss. Assuming a wave normal angle six degrees from the resonance cone angle, the calculated spectral densities are both two orders of magnitude below the observed spectral densities. It seems unlikely that VLF hiss is produced by incoherent Cerenkov radiation. The observed spectral shape of V-shaped VLF hiss is similar to that calculated from incoherent Cerenkov radiation. |
| NASA分類 | GEOPHYSICS |
| レポートNO | 73N31363
NASA-CR-133925
U-OF-IOWA-73-16 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/197732 |
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