| タイトル | The speeds of electrons that excite solar radio bursts of type III |
| 著者（英） | Hoang, S.; Dulk, G. A.; Steinberg, J. L.; Goldman, M. V. |
| 著者所属（英） | Observatoire de Paris-Meudon|Colorado Univ. |
| 発行日 | 1987-02-01 |
| 言語 | eng |
| 内容記述 | Evidence is presented that solar type III radio bursts at kilometric wavelengths are excited by electrons with average speeds of 0.14 c; i.e., in good agreement with in situ measurements by Lin et al. (1981; 1986), but considerably lower than the generally accepted values of 0.3 to 0.5 c. A set of 28 bursts for which electrons and/or plasma waves were observed at ISEE-3 is examined, and it is found that the initial parts of all bursts were due to plasma radiation at the fundamental, and that the fastest electrons that produce radio emission range from 0.25 c down to 0.07 c (average 0.14 c). The slower electrons, those that produce fundamental radiation at approximately the time of burst peak, have an average speed of 0.06 c and a range from about 0.10 c down to 0.03 c.There is no evidence in the data for a systematic increase or decrease of exciting electron speed with distance from the sun. |
| NASA分類 | SOLAR PHYSICS |
| レポートNO | 87A35696 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/378301 |
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