Cosmological constraints on the neutrino mass from CMB anisotropy and large-scale structure of the Universe

被引：0
|
作者：
A. M. Malinovsky
A. A. Voevodkin
V. N. Lukash
E. V. Mikheeva
A. A. Vikhlinin
机构：
[1] Russian Academy of Sciences,Astro Space Center, Lebedev Physical Institute
[2] Space Research Institute,undefined
[3] Los Alamos National Laboratory,undefined
[4] Harvard-Smithsonian Center for Astrophysics,undefined
来源：
Astronomy Letters | 2008年 / 34卷
关键词：
theoretical and observational cosmology; 95.85.Ry; 98.65.Cw; 98.80.Es;
D O I：
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中图分类号：
学科分类号：
摘要：
Using cosmological data on the CMB anisotropy and large-scale structure of the Universe, we have obtained new constraints on the sum of the masses of three generations of active neutrinos: Σmν < 1.05 eV (95% confidence level). Data of the third year of the WMAP mission served as the source of CMB anisotropy data. The mass functions of X-ray clusters of galaxies were taken as the data on the large-scale structure of the Universe. The observational properties of the clusters were obtained during the ROSAT mission and the assumption that the baryon fraction is universal in the Universe was used to determine the total cluster mass.
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页码：445 / 450
页数：5
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