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Gravitational lensing of fermion stars
Liu, DH; Zhang, YZ; Zhu, ZH; Zhang, YZ , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
2000
发表期刊COMMUNICATIONS IN THEORETICAL PHYSICS
ISSN0253-6102
卷号34期号:2页码:349-358
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.
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
关键词Boson Stars Stability
学科领域Physics
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收录类别SCI
WOS记录号WOS:000089836300026
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/12904
专题理论物理所SCI论文
通讯作者Zhang, YZ , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
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GB/T 7714
Liu, DH,Zhang, YZ,Zhu, ZH,et al. Gravitational lensing of fermion stars[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2000,34(2):349-358.
APA Liu, DH,Zhang, YZ,Zhu, ZH,&Zhang, YZ , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(2000).Gravitational lensing of fermion stars.COMMUNICATIONS IN THEORETICAL PHYSICS,34(2),349-358.
MLA Liu, DH,et al."Gravitational lensing of fermion stars".COMMUNICATIONS IN THEORETICAL PHYSICS 34.2(2000):349-358.
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