Constraining the window on sterile neutrinos as warm dark matter

被引：117

作者：

Hansen, SH

Lesgourgues, J

Pastor, S

Silk, J

机构：

[1] Univ Oxford, Dept Phys, Nucl & Astrophys Lab, Oxford OX1 3RH, England

[2] LAPTH, Lab Phys Theor, F-74941 Annecy Le Vieux, France

[3] Werner Heisenberg Inst, Max Planck Inst Phys, D-80805 Munich, Germany

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2002年 / 333卷 / 03期

关键词：

dark matter; early Universe; large-scale structure of Universe;

D O I：

10.1046/j.1365-8711.2002.05410.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Sterile neutrinos may be one of the best warm dark matter candidates we have today. Both lower and upper bounds on the mass of the sterile neutrino come from astronomical observations. We show that the proper inclusion of the neutrino momentum distribution reduces the allowed region to be 2.6 keV<m <5 keV for the simplest models. A search for a spectral line with E = m/2 is thus more interesting than ever before.

引用

页码：544 / 546

页数：3

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