Weighing neutrinos with galaxy cluster surveys

被引：70

作者：

Wang, S ^{[1
]}

Haiman, Z

Hu, W

Khoury, J

May, M

机构：

[1] Brookhaven Natl Lab, Upton, NY 11973 USA

[2] Columbia Univ, Dept Phys, New York, NY 10027 USA

[3] Columbia Univ, Dept Astron, New York, NY 10027 USA

[4] Univ Chicago, Enrico Fermi Inst, Dept Astron & Astrophys, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA

[5] MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.95.011302

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Large future galaxy cluster surveys, combined with cosmic microwave background observations, can achieve a high sensitivity to the masses of cosmologically important neutrinos. We show that a weak lensing selected sample of >= 100 000 clusters could tighten the current upper bound on the sum of masses of neutrino species by an order of magnitude, to a level of 0.03 eV. Since this statistical sensitivity is below the best existing lower limit on the mass of at least one neutrino species, a future detection is likely, provided that systematic errors can be controlled to a similar level.

引用

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