| タイトル | Solar activity observed in X-rays and the EUV from OSO 7 |
| 著者（英） | Thomas, R. J. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 1975-01-01 |
| 言語 | eng |
| 内容記述 | Spectroheliograms obtained with the EUV spectroheliograph aboard OSO 7 between 1.7 and 400 A with a spatial resolution of at least 20 x 20 arc seconds are described, and results of an initial analysis of the Goddard X-ray polarimeter measurements are given and discussed in the light of current flare theories. The EUV observations are consistent with a picture in which coronal enhancement overlying an active region is made up of a nested set of arches or loops, with foot-points in regions of opposite magnetic polarity. The outermost arches are coolest, while those nearer the center are hotter. Along a given field line there is a temperature gradient such that the highest temperature occurs at the highest point of the magnetic arch. Polarimeter data provide evidence for polarization of about 20% in a number of X-ray bursts. |
| NASA分類 | SOLAR PHYSICS |
| レポートNO | 76A10128 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/445297 |
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