| タイトル | Star-forming instabilities of a decelerating plane-parallel slab of finite thickness |
| 著者（英） | Voit, G. Mark |
| 著者所属（英） | Joint Inst. for Lab. Astrophysics|Colorado Univ. |
| 発行日 | 1988-08-01 |
| 言語 | eng |
| 内容記述 | In order to study how supernova blast waves might catalyze star formation, the stability of a slab of decelerating gas of finite thickness is explored. Previous analyses are extended by applying shock-like boundary conditions to the leading edge of the slab and by studying the effects of arbitrary deceleration. Contrary to some earlier claims, it is found that blast waves can indeed accelerate the rate of star formation in the interstellar medium by compressing the interstellar gas and enabling it to cool. Also, it is demonstrated that in an incompressible fluid, the symmetric and antisymmetric modes in the case of zero acceleration transform continuously into Rayleigh-Taylor and gravity-wave modes as acceleration grows more important. The dynamical overstability of an isothermal shock wave and its implications for star formation are discussed. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 88A47502 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/369581 |
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