| タイトル | Hierarchical fragmentation model for the evolution of self-gravitating clouds |
| 著者（英） | Wasserman, Ira; Newman, William I. |
| 著者所属（英） | Cornell Univ.|California Univ. |
| 発行日 | 1990-05-10 |
| 言語 | eng |
| 内容記述 | A hierarchical model for the fragmentation of cold, self-gravitating gas clouds is developed, and the model is applied to the collapse of matter accumulated at the boundaries of large-scale voids in the universe. In this model, the mass function for fragment sizes and the correlation function for fragment positions are naturally related. Using this relationship, the mass function for galaxies is derived from the observed galaxy-galaxy two-point correlation function. Assuming that galaxy masses and luminosities are proportional to one another, the derived luminosity function agrees with the empirical Schecter function at low luminosity. It is argued that the correlation function itself may be a natural outcome of large-scale gravitational instability at each stage of the hierarchy. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 90A34508 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/356322 |
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