| タイトル | Profiles and intensity ratios of the C IV lambda 1548, 1550 emission lines in planetary nebulae |
| 著者（英） | Feibelman, W. A. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 1983-06-01 |
| 言語 | eng |
| 内容記述 | The C IV resonance doublet at lambda 1548, 1550 is an important diagnostic tool in the study of planetary nebulae. The predicted theoretical intensity ratio of 2:1 is, however, rarely observed in the high dispersion IUE spectrograms. Values of 0.8-2.0 are observed for a sampling of 11 planetary nebulae of various excitation classes and for three proto-planetary nebulae. A diversity of line profiles is observed. In addition to the C IV doublet, weak subsidiary lines are seen. The spacing between these pseudo-lines happens to correspond to the separation of the C IV lines but are believed to be due to hot pixels and do not conform to the radial velocity displacement of the C IV lines. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 83A36706 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/403742 |
|
