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题名: Strong gravitational lensing in a black-hole spacetime dominated by dark energy
作者: Ding, CK ;  Liu, CQ ;  Xiao, YY ;  Jiang, LQ ;  Cai, RG
刊名: PHYSICAL REVIEW D
出版日期: 2013
卷号: 88, 期号:10, 页码:104007
关键词: SCALAR FIELD ;  GALAXIES ;  PARTICLE ;  GEOMETRY ;  LAMBDA ;  STARS
学科分类: Physics
通讯作者: Ding, CK (reprint author), Hunan Univ Humanities Sci & Technol, Dept Phys & Informat Engn, Loudi 417000, Hunan, Peoples R China.
部门归属: [Ding, Chikun; Liu, Changqing; Xiao, Yuanyuan; Jiang, Liqun] Hunan Univ Humanities Sci & Technol, Dept Phys & Informat Engn, Loudi 417000, Hunan, Peoples R China; [Cai, Rong-Gen] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
英文摘要: We study the influence of phantom fields on strong field gravitational lensing. Supposing that the gravitational field of the supermassive central object of the Galaxy is described by a phantom black hole metric, we estimate the numerical values of the coefficients and observations and find that the influence of the phantom fields is somewhat similar to that of the electric charge in a Reissner-Nordstrom black hole, i.e., the deflect angle and angular separation increase with the phantom constant b. However, other observations are contrary to the Reissner-Nordstrom case and show the effects of dark energy, such as (i) compressing the usual black hole and more powerfully attracting photons, (ii) making the relativistic Einstein ring larger than that of the usual black hole, and (iii) not weakening the usual relative magnitudes, which will facilitate observations.
资助者: National Natural Science Foundation of China [11247013]; Hunan Provincial NSFC [11JJ3014]; Scientific Research Fund of the Hunan Provincial Education Department [11B067]; Foundation for the Author of Hunan Provincial Excellent Doctoral Dissertation [YB2012B034]; Aid program for the Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000326827200004
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15235
Appears in Collections:理论物理所2013年知识产出 _期刊论文

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Recommended Citation:
Ding, CK,Liu, CQ,Xiao, YY,et al. Strong gravitational lensing in a black-hole spacetime dominated by dark energy[J]. PHYSICAL REVIEW D,2013,88(10):104007.
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