| タイトル | Analysis of extreme-ultraviolet observations of a polar coronal hole |
| 著者（英） | Mariska, J. T. |
| 発行日 | 1978-10-01 |
| 言語 | eng |
| 内容記述 | Emission gradient curves for extreme-ultraviolet resonance lines of lithiumlike ions have been constructed from spectroheliograms of a northern polar coronal hole observed on August 14, 1973, with the Harvard experiment on Skylab. An emission-measure analysis indicates both reduced density and coronal temperature in the coronal hole. The boundary geometry of the coronal hole is determined, and a temperature-density model that is consistent with the observed intensities is constructed. The model gives a conductive flux of 60,000 erg/sq cm per sec at 1.03 solar radii. The boundary geometry and density distribution are combined with typical solar-wind parameters at the earth to determine an outflow velocity of 15 km/s at 1.08 solar radii. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 78A52476
AD-A058283
AFGL-TR-78-0187 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/430982 |
|
