| タイトル | A photoionization model for the optical line emission from cooling flows |
| 著者（英） | Voit, G. M.; Donahue, Megan |
| 著者所属（英） | Colorado Univ. |
| 発行日 | 1991-11-10 |
| 言語 | eng |
| 内容記述 | The detailed predictions of a photoionization model previously outlined in Voit and Donahue (1990) to explain the optical line emission associated with cooling flows in X-ray emitting clusters of galaxies are presented. In this model, EUV/soft X-ray radiation from condensing gas photoionizes clouds that have already cooled. The energetics and specific consequences of such a model, as compared to other models put forth in the literature is discussed. Also discussed are the consequences of magnetic fields and cloud-cloud shielding. The results illustrate how varying the individual column densities of the ionized clouds can reproduce the range of line ratios observed and strongly suggest that the emission-line nebulae are self-irradiated condensing regions at the centers of cooling flows. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 92A12702 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/331373 |
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