| タイトル | Large-scale structure formation and cosmic microwave anisotropy in a cold plus hot dark matter universe |
| 著者（英） | Schaefer, Robert K.; Shafi, Qaisar; Stecker, Floyd W. |
| 著者所属（英） | Franklin Inst.|NASA Goddard Space Flight Center|Ohio State Univ. |
| 発行日 | 1989-12-15 |
| 言語 | eng |
| 内容記述 | Several particle physics models suggest the simultaneous existence of both cold and hot forms of dark matter particles. Assuming a Harrison-Zel'dovich spectrum of primordial density fluctuations and Omega = 1, the formation of structure in a universe dominated by a combination of cold dark matter and massive neutrinos is explored. It is found that the presence of the hot dark matter component can cause enough power on large scales to explain some recent observations, while there is still sufficient power on small scales to allow galactic structure formation. Spatial anisotropies in the microwave background radiation are computed and found to be compatible with observational limits. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 90A19485 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/358981 |
