期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 430, 期 4, 页码 3359-3375出版社
OXFORD UNIV PRESS
DOI: 10.1093/mnras/stt133
关键词
methods: statistical; galaxies: haloes; dark matter
资金
- China Postdoctoral Science Foundation [2011M500395]
- NSF [AST-1109354, AST-0908334]
- NSFC of China [11033005, 11173001]
- Division Of Astronomical Sciences
- Direct For Mathematical & Physical Scien [908334] Funding Source: National Science Foundation
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.
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