Gravitational lensing of fermion stars

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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.
刊名	COMMUNICATIONS IN THEORETICAL PHYSICS
	2000
卷号	34 期号:2 页码:349-358
关键词	Boson Stars Stability
ISSN号	0253-6102
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.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000089836300026
公开日期	2012-08-29
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/12904]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Zhang, YZ , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
推荐引用方式 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.