星系暈

Multi tool use
星系暈是螺旋星系中,包括我們的星系 - 銀河的銀暈,遠遠的延伸在星系盤面之外的部分,也是螺旋星系最容易看見的部分。
星系暈 可以是:
星系扁球體的部分 - 恆星,
銀冕 - 一些高熱的氣體(也就是電漿),
- 星系的暗物質暈。
星系扁球體和暗物質暈是與星系核心同心、且大致成球對稱。
在橢圓星系,星系的主體和暈之間沒有明顯的界限。
相關條目
- 星系的形成和演化
- 銀河座標系統
- 核球
圓盤星系
- 星系扁球體
- 銀冕
參考資料
- Diemand, J. & Moore, B. & Stadel, J. (2005, January 27). Earth-mass dark-matter haloes as the first structures in the early universe. In Nature, 433, 389 – 391.
外部連結
- http://chandra.harvard.edu/photo/2006/n5746/
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