星系暈




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
    • 螺旋臂


  • 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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