| タイトル | The ultraviolet spectrum of an aurora 530-1520 A |
| 著者（英） | Gentieu, E. P.; Feldman, P. D. |
| 著者所属（英） | Johns Hopkins Univ.|NASA Goddard Space Flight Center |
| 発行日 | 1982-04-01 |
| 言語 | eng |
| 内容記述 | Ultraviolet spectra between 530 and 1520 A of an active auroral arc were obtained at 6.5-A instrumental resolution. Several new emission features are identified, including several bands of the N2 Birge-Hopfield (1, v-double-prime) progression and numerous N I multiplets, the latter being preponderant at low altitudes. The improved instrumental resolution over previous experiments in the wavelength region below 1200 A allows for a partial resolution of the complex structure between 900 and 1100 A reported in earlier work. The ratio of O I 1356 to N2 Lyman-Birge-Hopfield is smaller than in the dayglow at a similar altitude, and this is interpreted as evidence for a depletion of atomic oxygen in the auroral ionosphere relative to mid-latitude composition. |
| NASA分類 | GEOPHYSICS |
| レポートNO | 82A31024 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/410836 |
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