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Mass to light ratio of galaxies and gravitational lensing
Li, Nan; Li, Ran; Er, Xin-Zhong
2013-09-01
发表期刊RESEARCH IN ASTRONOMY AND ASTROPHYSICS
卷号13期号:9页码:1041-1051
摘要We investigate the potential of constraining the mass to light ratio of field galaxies using weak lensing shear and flexions. A suite of Monte Carlo simulations are used to generate weak lensing observations with different noise models. Using mock data, we find that the inclusion of flexions can improve the estimate of foreground halo parameters, but the details are strongly dependent on noise in the model. In the intrinsic noise limit, both shear and flexions are promising tools to study the mass to light ratio of galaxies. However, if the noise model of flexions follows the form described by Rowe et al., there is only similar to 5% improvement in the constraints even with next generation lensing observations.
关键词Cosmology: Dark Matter Galaxies: Halos Gravitational Lensing
DOI10.1088/1674-4527/13/9/003
收录类别SCI
语种英语
WOS记录号WOS:000323757800003
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文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/8893
专题射电天文研究部
作者单位Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
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Li, Nan,Li, Ran,Er, Xin-Zhong. Mass to light ratio of galaxies and gravitational lensing[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2013,13(9):1041-1051.
APA Li, Nan,Li, Ran,&Er, Xin-Zhong.(2013).Mass to light ratio of galaxies and gravitational lensing.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,13(9),1041-1051.
MLA Li, Nan,et al."Mass to light ratio of galaxies and gravitational lensing".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 13.9(2013):1041-1051.
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