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Ap和Bp星

Ap和Bp星是A型和B型特殊恆星(因此註記為p),光譜中顯是有過多的稀土金屬元素(像是)或其他的像是)。這些恆星的自轉速度比一般A和B型的恆星要慢,雖然仍有一些可以高達≈ 100公里/秒。它們也有很強的磁場,有些可以達到 ≈ 4萬G(4T)。過剩的化學元素在空間中的位置顯示出與磁場的幾何連接。 有些這一類的恆星會在徑向速度上出現數分鐘的脈衝變化。 研究這些恆星的高解析光譜時,會配合使用研究恆星自轉以推論表面地圖的都卜勒成像。

相關條目

參考資料

  1. Gray “The Observation and Analysis of Stellar Photospheres”页面存档备份,存于互联网档案馆),(2005), Cambridge University Press, ISBN 0521851866
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Ap和Bp星
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