| タイトル | Solar wind electron densities from Viking dual-frequency radio measurements |
| 著者（英） | Anderson, J. D.; Muhleman, D. O. |
| 著者所属（英） | Jet Propulsion Lab., California Inst. of Tech.|California Inst. of Tech. |
| 発行日 | 1981-08-01 |
| 言語 | eng |
| 内容記述 | Simultaneous phase coherent, two-frequency measurements of the time delay between the earth station and the Viking spacecraft have been analyzed in terms of the electron density profiles from 4 solar radii to 200 solar radii. The measurements were made during a period of solar activity minimum (1976-1977) and show a strong solar latitude effect. The data were analyzed with both a model independent, direct numerical inversion technique and with model fitting, yielding essentially the same results. It is shown that the solar wind density can be represented by two power laws near the solar equator proportional to r exp -2.7 and r exp -2.04. However, the more rapidly falling term quickly disappears at moderate latitudes (approximately 20 deg) leaving only the inverse-square behavior. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 81A46008 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/415235 |
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