Constraints on the neutrino mass and the primordial magnetic field from the matter density fluctuation parameter σ8

被引：17
|
作者：
Yamazaki, Dai G. [1 ]
Ichiki, Kiyotomo [2 ]
Kajino, Toshitaka [3 ,4 ]
Mathews, Grant J. [5 ]
机构：
[1] Natl Taiwan Univ, Inst Astron & Astrophys, Acad Sinica, Taipei 10617, Taiwan
[2] Nagoya Univ, Dept Phys & Astrophys, Nagoya, Aichi 4648602, Japan
[3] Natl Inst Nat Sci, Natl Astron Observ Japan, Mitaka, Tokyo 1818588, Japan
[4] Univ Tokyo, Dept Astron, Grad Sch Sci, Bunkyo Ku, Tokyo 1130033, Japan
[5] Univ Notre Dame, Dept Phys, Ctr Astrophys, Notre Dame, IN 46556 USA
来源：
PHYSICAL REVIEW D | 2010年 / 81卷 / 10期
关键词：
MICROWAVE BACKGROUND ANISOTROPIES; POWER-SPECTRUM; GALAXY; PROBE;
D O I：
10.1103/PhysRevD.81.103519
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We have made an analysis of limits on the neutrino mass based upon the formation of large-scale structure in the presence of a primordial magnetic field. We find that a new upper bound on the neutrino mass is possible based upon fits to the cosmic microwave background and matter power spectrum when the existing independent constraints on the matter density fluctuation parameter sigma(8) and the primordial magnetic field are taken into account.
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页数：5
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