NAOC Open IR  > 射电天文研究部
Mass function of rich galaxy clusters and its constraint on Sigma(8)
Wen, Z. L.1; Han, J. L.1; Liu, F. S.2
2010-09-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume407Issue:1Pages:533-543
AbstractThe mass function of galaxy clusters is a powerful tool to constrain cosmological parameters, e.g. the mass fluctuation on the scale of 8 h-1 Mpc, Sigma(8), and the abundance of total matter, (m). We first determine the scaling relations between cluster mass and cluster richness, summed r-band luminosity and the global galaxy number within a cluster radius. These relations are then used to two complete volume-limited rich cluster samples which we obtained from the Sloan Digital Sky Survey (SDSS). We estimate the masses of these clusters and determine the cluster mass function. Fitting the data with a theoretical expression, we get the cosmological parameter constraints in the form of Sigma(8)((m)/0.3)alpha = beta and find out the parameters of alpha = 0.40-0.50 and beta = 0.8-0.9, so that Sigma(8) = 0.8-0.9 if (m) = 0.3. Our Sigma(8) value is slightly higher than recent estimates from the mass function of X-ray clusters and the Wilkinson Microwave Anisotropy Probe (WMAP) data, but consistent with the weak lensing statistics.
KeywordGalaxies: Clusters: General Cosmological Parameters
DOI10.1111/j.1365-2966.2010.16930.x
Indexed BySCI
Language英语
WOS IDWOS:000281140900045
Citation statistics
Cited Times:31[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/7773
Collection射电天文研究部
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
2.Shenyang Normal Univ, Coll Phys Sci & Technol, Shenyang 110034, Peoples R China
Recommended Citation
GB/T 7714
Wen, Z. L.,Han, J. L.,Liu, F. S.. Mass function of rich galaxy clusters and its constraint on Sigma(8)[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2010,407(1):533-543.
APA Wen, Z. L.,Han, J. L.,&Liu, F. S..(2010).Mass function of rich galaxy clusters and its constraint on Sigma(8).MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,407(1),533-543.
MLA Wen, Z. L.,et al."Mass function of rich galaxy clusters and its constraint on Sigma(8)".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 407.1(2010):533-543.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wen, Z. L.]'s Articles
[Han, J. L.]'s Articles
[Liu, F. S.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wen, Z. L.]'s Articles
[Han, J. L.]'s Articles
[Liu, F. S.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wen, Z. L.]'s Articles
[Han, J. L.]'s Articles
[Liu, F. S.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.