期刊
ASTROPHYSICAL JOURNAL LETTERS
卷 698, 期 1, 页码 L33-L36出版社
IOP PUBLISHING LTD
DOI: 10.1088/0004-637X/698/1/L33
关键词
galaxies: clusters: general; large-scale structure of universe; methods: N-body simulations
资金
- Marie Curie Reintegration Grant
- Swiss National Foundation
- NSF [AST-0607667]
- NASA [BEFS-04-0014-0018]
- Department of Energy [DOE-DEFG02-95ER40893]
- Deutsche Forschungsgemeinschaft
We present the main results of a numerical study of weak lensing cluster counting. We examine the scaling with cosmology of the projected-density-peak mass function. Our main conclusion is that the projected-peak and the three-dimensional mass functions scale with cosmology in an astonishingly close way. This means that, despite being derived from a two-dimensional field, the weak lensing cluster abundance can be used to constrain cosmology in the same way as the three-dimensional mass function probed by other types of surveys.
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