| タイトル | Characteristics of reflected and diffuse ions upstream from the earth's bow shock |
| 著者（英） | Papamastorakis, I.; Bame, S. J.; Asbridge, J. R.; Sckopke, N.; Paschmann, G.; Gosling, J. T. |
| 著者所属（英） | Max-Planck-Inst. fuer Extraterrestrische Physik|Los Alamos Scientific Lab. |
| 発行日 | 1981-06-01 |
| 言語 | eng |
| 内容記述 | The distinction between two types of upstream ion populations is made on the basis of pronounced differences in their distribution functions. The reflected ions represent a fast beam with temperatures typically one-million to five-million K and speeds up to five times the solar wind speed. An important feature of the reflected ion distributions is their strong temperature anisotropy, with perpendicular temperature exceeding parallel temperature by a factor of two or three. In contrast, the diffuse ions occupy a much larger region of phase space, both in energy and angle; their distribution function generally has the form of a circular ridge in two dimensions and a spherical shell in three dimensions. Accordingly, their temperature is much larger (not less than about 10-million K) and their bulk speed is typically smaller than the solar wind speed. |
| NASA分類 | GEOPHYSICS |
| レポートNO | 81A38931 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/416156 |
|
