中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Three-dimensional microlensing

文献类型:期刊论文

作者Mao, Shude1,2; Witt, Hans J.; An, Jin H.1
刊名MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期2014
卷号437期号:2页码:1554-1560
关键词gravitational lensing: strong gravitational lensing: micro Galaxy: bulge Galaxy: centre Galaxy: structure
英文摘要We study three-dimensional microlensing where two lenses are located at different distances along the line of sight. We formulate the lens equation in complex notations and recover several previous results. There are in total either four or six images, with an equal number of images with positive and negative parities. We find that the sum of signed magnifications for six-image configurations is unity. Furthermore, we show that the light curves can be qualitatively different from those for binary lensing in a single plane. In particular, the magnifications between a 'U'-shaped caustic crossing can be close to unity, rather than having a minimum magnification of 3 as in the single-plane binary lensing. There is only a small probability that three-dimensional microlensing events will be seen in microlensing towards the Galactic Centre. It is more likely that they will be first seen in cosmological microlensing.
收录类别SCI
语种英语
WOS记录号WOS:000331617000040
源URL[http://ir.bao.ac.cn/handle/114a11/6494]  
专题国家天文台_光学天文研究部
作者单位1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
2.Univ Manchester, Jodrell Bank Ctr Astrophys, Manchester M13 9PL, Lancs, England
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GB/T 7714
Mao, Shude,Witt, Hans J.,An, Jin H.. Three-dimensional microlensing[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2014,437(2):1554-1560.
APA Mao, Shude,Witt, Hans J.,&An, Jin H..(2014).Three-dimensional microlensing.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,437(2),1554-1560.
MLA Mao, Shude,et al."Three-dimensional microlensing".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 437.2(2014):1554-1560.

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来源:国家天文台

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