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

被引：5

作者：

Malinovsky, A. M. ^{[1
]}

Voevodkin, A. A. ^{[2
,3
]}

Lukash, V. N. ^{[1
]}

Mikheeva, E. V. ^{[1
]}

Vikhlinin, A. A. ^{[2
,4
]}

机构：

[1] Russian Acad Sci, PN Lebedev Phys Inst, Ctr Astro Space, Moscow 117997, Russia

[2] Space Res Inst, Moscow 117997, Russia

[3] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[4] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

来源：

ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS | 2008年 / 34卷 / 07期

基金：

俄罗斯基础研究基金会;

关键词：

theoretical and observational cosmology;

D O I：

10.1134/S1063773708070025

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

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: Sigma m (nu) < 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.

引用

页码：445 / 450

页数：6

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