MASS-CONCENTRATION RELATION OF CLUSTERS OF GALAXIES FROM CFHTLenS
文献类型：期刊论文
| 作者 | Du, Wei1,2; Fan, Zuhui2,3; Shan, Huanyuan4; Zhao, Gong-Bo1 ; Covone, Giovanni5,6; Fu, Liping7; Kneib, Jean-Paul4,8
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2015-12-01 |
| 卷号 | 814期号:2 |
| 关键词 | dark matter galaxies: clusters: general galaxies: halos gravitational lensing: weak |
| 英文摘要 | Based on weak lensing data from the Canada-France-Hawaii Telescope Lensing Survey (CFHTLenS), in this paper we study the mass-concentration (M-c) relation for similar to 200 redMaPPer clusters in the fields. We extract the M-c relation by measuring the density profiles of individual clusters instead of using stacked weak lensing signals. By performing Monte Carlo simulations, we demonstrate that although the signal-to-noise ratio for each individual cluster is low, the unbiased M-c relation can still be reliably derived from a large sample of clusters by carefully taking into account the impacts of shape noise, cluster center offset, dilution effect from member or foreground galaxies, and the projection effect. Our results show that within error bars the derived M-c relation for redMaPPer clusters is in agreement with simulation predictions. There is a weak deviation in that the halo concentrations calibrated by Monte Carlo simulations are somewhat higher than that predicted from Planck cosmology. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000365317300038 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/5524]  |
| 专题 | 国家天文台_星系宇宙学研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Peking Univ, Dept Astron, Beijing 100871, Peoples R China 3.Collaborat Innovat Ctr Modern Astron & Space Expl, Nanjing 210093, Jiangsu, Peoples R China 4.Ecole Polytech Fed Lausanne, Lab Astrophys LASTRO, Observ Sauverny, CH-1290 Versoix, Switzerland 5.Univ Naples Federico II, Dipartimento Fis, I-80126 Naples, Italy 6.Ist Nazl Fis Nucl, Sez Napoli, I-80126 Naples, Italy 7.Shanghai Normal Univ, Shanghai Key Lab Astrophys, Shanghai 200234, Peoples R China 8.Aix Marseille Univ, CNRS, LAM, UMR 7326, F-13388 Marseille, France |
| 推荐引用方式 GB/T 7714 | Du, Wei,Fan, Zuhui,Shan, Huanyuan,et al. MASS-CONCENTRATION RELATION OF CLUSTERS OF GALAXIES FROM CFHTLenS[J]. ASTROPHYSICAL JOURNAL,2015,814(2). |
| APA | Du, Wei.,Fan, Zuhui.,Shan, Huanyuan.,Zhao, Gong-Bo.,Covone, Giovanni.,...&Kneib, Jean-Paul.(2015).MASS-CONCENTRATION RELATION OF CLUSTERS OF GALAXIES FROM CFHTLenS.ASTROPHYSICAL JOURNAL,814(2). |
| MLA | Du, Wei,et al."MASS-CONCENTRATION RELATION OF CLUSTERS OF GALAXIES FROM CFHTLenS".ASTROPHYSICAL JOURNAL 814.2(2015). |
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来源：国家天文台
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