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弱氦星

维基百科，自由的百科全书

弱氦星是化学性质奇特的恒星，它们的光谱在光谱类型有微弱的氦线[1][2]。它们的氦线显示是在晚期较低的温度，比氢线显示的低[3]。

弱氦星列表

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这是一份不完整的弱氦星清单[4][5]：

  • HR 939
  • HR 1100
  • HR 1121
  • HR 1441
  • HR 2509
  • HR 3448
  • HR 4801
  • HR 8137
  • 水蛇座θ
  • HD 34797
  • HD 35456

相关条目

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参考资料

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  1. ^ Landstreet, J. D.; Bohlender, David A. Abundance and Magnetic Field Geometries of Helium-Strong and Helium-Weak Stars. Symposium - International Astronomical Union. 1988, 132: 309–312. ISSN 0074-1809. doi:10.1017/S0074180900035191 可免费查阅 （英语）. 
  2. ^ Preston, George W. The Chemically Peculiar Stars of the Upper Main Sequence. Annual Review of Astronomy and Astrophysics. 1974, 12 (1): 257–277. Bibcode:1974ARA&A..12..257P. doi:10.1146/annurev.aa.12.090174.001353. 
  3. ^ A Digital Spectral Classification Atlas - R. O. Gray. ned.ipac.caltech.edu. [2019-05-31]. （原始内容存档于2020-08-01）. 
  4. ^ Jaschek, Mercedes; Jaschek, Carlos; Arnal, Marcelo. Helium-Weak Stars. Publications of the Astronomical Society of the Pacific. October 1969, 81 (482): 651. Bibcode:1969PASP...81..650J. doi:10.1086/128832 可免费查阅. 
  5. ^ Alonso, M. S.; López-García, Z.; Malaroda, S.; Leone, F. Elemental abundance studies of CP stars. The helium-weak stars HD 19400, HD 34797 and HD 35456*. Astronomy and Astrophysics. April 2003, 402: 331. Bibcode:2003A&A...402..331A. doi:10.1051/0004-6361:20030222 可免费查阅. 
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