| タイトル | The effect of neutrino transport on the collapse of iron stellar cores |
| 著者（英） | Lichtenstadt, I.; Hoffman, Y.; Myra, E. S.; Bludman, S. A.; Sack, N. |
| 著者所属（英） | Pennsylvania Univ.|Hebrew Univ. |
| 発行日 | 1987-07-15 |
| 言語 | eng |
| 内容記述 | A multigroup flux-limited diffusion approximation to neutrino transport, correct to first order in material velocities, is described. The role of neutrino-electron scattering in determining core deleptonization is studied using a modified Fokker-Planck approximation in which adjacent neutrino energy groups are coupled. The moderate deleptonizaton obtained during infall restricts homologous core masses to less than 0.8 solar mass. With 0.6-0.8 solar mass of outer core to traverse, nuclear dissociation alone stalls the shock waves produced at core bounce. In addition, neutrino energy losses remove at least another 4 x 10 to the 51st ergs. In no case is matter ejected promptly as a direct result of the initial shock wave. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 87A46823 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/376557 |
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