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题名: Gravitational lensing of fermion stars
作者: Liu, DH ;  Zhang, YZ ;  Zhu, ZH
刊名: COMMUNICATIONS IN THEORETICAL PHYSICS
出版日期: 2000
卷号: 34, 期号:2, 页码:349-358
关键词: BOSON STARS ;  STABILITY
学科分类: Physics
通讯作者: Zhang, YZ , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
部门归属: Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Chinese Acad Sci, State Key Lab Sci & Engn Comp, Beijing 100080, Peoples R China; Chinese Acad Sci, Beijing Observ, Beijing 100012, Peoples R China
英文摘要: We discuss the fermion stars, the self-gravitating systems of Fermi gases, as possible gravitational lenses. It is supposed that the fermions interact with themselves and other particles only by gravity, so they are the candidates of dark matter. We calculate Einstein deflection angles, study the image configurations, and calculate the magnification factors for a number of fermion stars that range from strong relativistic configurations to nonrelativistic ones. We find that typically there are three images, one Einstein ring and one radial critical curve for both cases. Two of the images are within the Einstein ring, and the other is outside, which may be very far. All these lensing characteristics can help to identify fermion stars as potential lensing objects, thus might give direct evidence that dark fermion stars exist in the universe.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000089836300026
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12904
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Liu, DH,Zhang, YZ,Zhu, ZH. Gravitational lensing of fermion stars[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2000,34(2):349-358.
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