Constraining the substructure of dark matter haloes with galaxy-galaxy lensing

被引：23
作者：
Li, Ran [1 ]
Mo, H. J. [2 ]
Fan, Zuhui [3 ]
Yang, Xiaohu [4 ]
van den Bosch, Frank C. [5 ]
机构：
[1] Chinese Acad Sci, Natl Astron Observ, Beijing 100871, Peoples R China
[2] Univ Massachusetts, Dept Astron, Amherst, MA 01003 USA
[3] Peking Univ, Dept Astron, Beijing 100871, Peoples R China
[4] Shanghai Astron Observ, Shanghai 200030, Peoples R China
[5] Yale Univ, Dept Astron, New Haven, CT 06520 USA
来源：
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2013年 / 430卷 / 04期
基金：
中国博士后科学基金; 美国国家科学基金会;
关键词：
methods: statistical; galaxies: haloes; dark matter; DIGITAL SKY SURVEY; MASS SUBSTRUCTURE; DENSITY PROFILE; STELLAR MASS; EVOLUTION; CLUSTERS; DEPENDENCE; LUMINOSITY; ANISOTROPY; SUBHALOES;
D O I：
10.1093/mnras/stt133
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
With galaxy groups constructed from the Sloan Digital Sky Survey (SDSS), we analyse the expected galaxy-galaxy lensing signals around satellite galaxies residing in different host haloes and located at different halo-centric distances. We use a Markov chain Monte Carlo method to explore the potential constraints on the mass and density profile of subhaloes associated with satellite galaxies from SDSS-like surveys and surveys similar to the Large Synoptic Survey Telescope (LSST). Our results show that for SDSS-like surveys, we can only set a loose constraint on the mean mass of subhaloes. With LSST-like surveys, however, both the mean mass and the density profile of subhaloes can be well constrained.
引用
收藏
页码：3359 / 3375
页数：17
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