| タイトル | Theoretical quasar emission line ratios. IV - General asymptotic escape probabilities and the effects of linear Stark broadening |
| 著者（英） | Puetter, R. C. |
| 著者所属（英） | California Univ., San Diego |
| 発行日 | 1981-12-15 |
| 言語 | eng |
| 内容記述 | Established techniques permitting the evaluation of exact asymptotic forms of photon escape probabilities for a wide range of absorption coefficient profile types are used for QSO radiative transfer effect studies, and it is shown that the exact formulae are easily evaluated. It is found that some of the commonly used expressions overestimate the true value by a factor of about two, and a computationally expedient approximate expression is derived for the asymptotic form of the photon escape probability when linear Stark broadening contributes to the line absorption coefficient profile in hydrogenic lines. Attention is given to Lyman-alpha, for the case in which partial redistribution, over the linear Stark component of the line absorption coefficient profile, dominates single-flight photon escape. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 82A21480 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/412076 |
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