| タイトル | Dynamic behaviour of the K-corona above a type I radio source |
| 著者（英） | Duncan, R. A. |
| 著者所属（英） | Commonwealth Scientific and Industrial Research Organization|National Center for Atmospheric Research |
| 発行日 | 1983-11-01 |
| 言語 | eng |
| 内容記述 | Coronagraph images can be greatly enhanced by subtracting from the brightness of each picture point, the running median brightness over a square surrounding each picture point. The application of this technique to coronal analysis appears to be new. After such enhancement, images recorded by the SMM Coronagraph/Polarimeter reveal a coronal transient with previously undescribed characteristics. The transient began with bright ejecta moving up pre-existing rays and weaker, more diffuse, mass injection in the area between rays. At the sudden onset of this mass ejection the rays began to move apart from one another: during the ensuing 22 hr the separation of one pair of rays increased by 37 deg of latitude. Towards the end of the event these moving rays looked much like the legs of previously described loop transients. A type I radio source lay close to the center of symmetry of the transient. |
| NASA分類 | SOLAR PHYSICS |
| レポートNO | 84A20930 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/399734 |
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