星系晕
xīnɡ xì yùn
- 名galactic halo
星系晕-
星系晕较重r-过程元素产量和丰度的离散
The Heavy R-process Elements Yields and Abundances Scatter in the Halo of Galaxy
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通过研究半解析和流体动力学两种星系形成模型，我们发现，暗物质晕中的星系分布对晕的形成时间也有强烈的依赖性。
We find that , in halos of fixed mass , the number of satellite galaxies has a strong dependence on the halo age , with fewer satellites in older halos .
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由于外形酷似草帽而得名的“草帽星系”编号为M104，它拥有显著的尘埃带，还有恒星和球状星团组成的明亮星系晕。
Named the Sombrero Galaxy for its hat-like resemblance , M104 features a prominent dust lane and a bright halo of stars and globular clusters .