| タイトル | Solar particle fluxes and the ancient sun |
| 著者（英） | Lingenfelter, R. E.; Hudson, H. S. |
| 著者所属（英） | California Univ. |
| 発行日 | 1980-01-01 |
| 言語 | eng |
| 内容記述 | The implications of the statistical data on solar flare particle fluxes, for the present and the ancient sun, considering modern data from the past two solar cycles, C-14 data from the past 7000 years, and Al-26 and Mn-53 data in lunar samples for the last 10-million years are reviewed. All of these records suggest that there is a maximum proton fluence (greater than 10 MeV) from a solar flare on the order of 10 to the 10th p/sq cm, above which the size-frequency distribution steepens sharply. From this it is extremely unlikely that energetic particles from solar flares could have contributed to extinction catastrophes in the fossil record. |
| NASA分類 | SOLAR PHYSICS |
| レポートNO | 81A48807 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/414942 |
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