Mass Flow from Stellar Systems—I: Radial Flow from Spherical Systems
Mass Flow from Stellar Systems—I: Radial Flow from Spherical Systems
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恒星系统的质量流—I：球形系统的径向流
DOI：
10.1093/mnras/140.2.241
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发表时间：
1968
期刊：
影响因子：
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通讯作者：
J. Burke
中科院分区：
文献类型：
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作者：
J. Burke
有证据表明，某些星族II恒星系统中存在星际物质。为了理解这种物质的行为，本文提出了一个简化的恒星系统模型，其中假定：（i）星际物质是由其恒星成分注入系统的，（ii）建立了一种径向向外的流动模式，（iii）星际物质是由恒星成分注入系统的，（iv）星际物质是由恒星成分注入系统的。（iii）流动处于稳定状态。控制模型的微分方程的解给出了速度，温度，球状星团和椭圆星系中星际物质的密度。可以看出，对于更紧密结合的椭圆星系的解决方案不存在，这表明材料不会逃逸的径向，稳态流动模式，但可能仍然在星系内。
Evidence indicates that interstellar material exists within some Population II stellar systems. With a view toward understanding the behaviour of this material, a simplified model stellar system is outlined in which it is assumed that:(i) interstellar material is injected into the system by its stellar component;(ii) a radial, outward flow pattern is established;(iii) the flow is in steady state.Solutions of the differential equations governing the model give quantitative results for the velocity, temperature, and density of the interstellar matter in globular clusters and elliptical galaxies. It is seen that for the more tightly bound elliptical galaxies solutions do not exist, indicating that material does not escape in a radial, steady state flow pattern, but probably remains within the galaxy.