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Cosmological constraint revisited from Kappa band galactic counts
Xu, W; Yu, YQ; Zhou, GR; Xu, W , Chinese Acad Sci, Beijing Astron Observ, Beijing 100080, Peoples R China.
1998
发表期刊COMMUNICATIONS IN THEORETICAL PHYSICS
ISSN0253-6102
卷号30期号:2页码:275-280
摘要The information of Omega(Lambda) of a hat universe is extracted from K band galaxy number counts, without using evolution (NE) models. Cowie ct al.'s observations, with model input luminosity functions taken from Efstathiou et al. (1988), Loveday et al. (1992) and Mobasher et al. (1993), give (nh) in the range: 0.59 similar to 0.81 plus a typical random error of sigma(Omega Lambda) = 0.2-0.1, respectively. Keek's observations give Omega(Lambda) = 0.9. We conclude that either the normalization of nearby luminosity function is too high or the cosmological constant cannot be too large.
部门归属Chinese Acad Sci, Beijing Astron Observ, Beijing 100080, Peoples R China; Beijing Univ, Dept Phys, Beijing 100871, Peoples R China; Wuyi Univ, Dept Math & Phys, Jiangmen 529051, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Galaxy Redshift Sample K-band Luminosity Function Field Galaxies Constant Density Parameter Evolution Universe Catalog
学科领域Physics
收录类别SCI
WOS记录号WOS:000076017200019
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/12264
专题理论物理所1978-2010年知识产出
通讯作者Xu, W , Chinese Acad Sci, Beijing Astron Observ, Beijing 100080, Peoples R China.
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GB/T 7714
Xu, W,Yu, YQ,Zhou, GR,et al. Cosmological constraint revisited from Kappa band galactic counts[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,1998,30(2):275-280.
APA Xu, W,Yu, YQ,Zhou, GR,&Xu, W , Chinese Acad Sci, Beijing Astron Observ, Beijing 100080, Peoples R China..(1998).Cosmological constraint revisited from Kappa band galactic counts.COMMUNICATIONS IN THEORETICAL PHYSICS,30(2),275-280.
MLA Xu, W,et al."Cosmological constraint revisited from Kappa band galactic counts".COMMUNICATIONS IN THEORETICAL PHYSICS 30.2(1998):275-280.
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