Supernovae versus models of the interstellar medium and the gaseous halo
Supernovae versus models of the interstellar medium and the gaseous halo
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超新星与星际介质和气态晕模型
DOI：
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发表时间：
1987
期刊：
影响因子：
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通讯作者：
C. Heiles
中科院分区：
文献类型：
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作者：
C. Heiles
用一个近似理论和观测数据估计了Q，即超新星空洞所占体积或面积的比例，并将结果与观测值Q进行了比较。对于I型SNs， Q（3D）的计算值是适中的，不与太阳附近的观测数据相破坏。I型SN的速率应该向银河系内部增加，并提出由此导致的Q（3D）的增加是在大多数螺旋星系中心观察到的H I洞的原因。对于在空间和时间上具有相关性的II型SNs，其爆炸空腔足够大，足以突破气态盘。银河系的Q（3D）计算值比unity大得多。这与银河系和星系外的观测数据大相径庭。也有人预测，要么是物质注入晕的速度比漫射x射线观测所允许的要大得多，要么是星系有风。106年引用。
An approximate theory and observational data are used to estimate Q, the fraction of volume or area occupied by supernova cavities, and the results are compared with observational determinations of Q. For Type I SNs the calculated values of Q(3D) are modest and do not violate observational data in the solar neighborhood. Type I SN rates should increase toward the Galactic interior, and it is suggested that the resulting increase in Q(3D) is responsible for the H I holes observed in the centers of most spiral galaxies. For Type II SNs, which are correlated in space and time, the explosion cavities are large enough to break through the gaseous disk. The calculated values of Q(3D) for the Galaxy are much larger than unity. This is in violent disagreement with Galactic and extragalactic observational data. It is also predicted that either the mass injection rate into the halo is much larger than allowed by diffuse X-ray observations or that the Galaxy has a wind. 106 references.