ITP OpenIR  > SCI期刊论文
Hu, JW; Cai, RG; Guo, ZK; Hu, B; Hu, JW (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, POB 2735, Beijing 100190, Peoples R China.
Cosmological parameter estimation from CMB and X-ray cluster after Planck
Source PublicationJOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
Language英语
KeywordMicrowave Background Anisotropies Baryon Acoustic-oscillations Mass-temperature Relation South-pole Telescope Spt-sz Survey Galaxy Clusters Hubble Constant Power Spectrum Chandra Sample Damping Tail
Abstract. We investigate constraints on cosmological parameters in three 8-parameter models with the summed neutrino mass as a free parameter, by a joint analysis of CCCP X-ray cluster data, the newly released Planck CMB data as well as some external data sets including baryon acoustic oscillation measurements from the 6dFGS, SDSS DR7 and BOSS DR9 surveys, and Hubble Space Telescope Ho measurement. We find that the combined data strongly favor a non-zero neutrino masses at more than 3 sigma confidence level in these non-vanilla models. Allowing the CMB lensing amplitude A(L) to vary, we find A(L) > 1 at 3 sigma confidence level. For dark energy with a constant equation of state w, we obtain w < -1 at 3 sigma confidence level. The estimate of the matter power spectrum amplitude 08 is discrepant with the Planck value at 2 sigma confidence level, which reflects some tension between X-ray cluster data and Planck data in these non-vanilla models. The tension can be alleviated by adding a 9% systematic shift in the cluster mass function.
2014
ISSN1475-7516
Issue5Pages:20
Subject AreaPhysics
DOI10.1088/1475-7516/2014/05/020
Indexed BySCI
Funding Organizationproject of Knowledge Innovation Program of Chinese Academy of Science, NSFC [11175225, 11335012]; National Basic Research Program of China [2010CB832805, 2010CB833004]; Dutch Foundation for Fundamental Research on Matter (FOM) ; project of Knowledge Innovation Program of Chinese Academy of Science, NSFC [11175225, 11335012]; National Basic Research Program of China [2010CB832805, 2010CB833004]; Dutch Foundation for Fundamental Research on Matter (FOM) ; project of Knowledge Innovation Program of Chinese Academy of Science, NSFC [11175225, 11335012]; National Basic Research Program of China [2010CB832805, 2010CB833004]; Dutch Foundation for Fundamental Research on Matter (FOM) ; project of Knowledge Innovation Program of Chinese Academy of Science, NSFC [11175225, 11335012]; National Basic Research Program of China [2010CB832805, 2010CB833004]; Dutch Foundation for Fundamental Research on Matter (FOM)
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Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/15770
CollectionSCI期刊论文
Corresponding AuthorHu, JW (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, POB 2735, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Hu, JW,Cai, RG,Guo, ZK,et al. Cosmological parameter estimation from CMB and X-ray cluster after Planck[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2014(5):20.
APA Hu, JW,Cai, RG,Guo, ZK,Hu, B,&Hu, JW .(2014).Cosmological parameter estimation from CMB and X-ray cluster after Planck.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(5),20.
MLA Hu, JW,et al."Cosmological parameter estimation from CMB and X-ray cluster after Planck".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .5(2014):20.
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