Cosmology with massive neutrinos coupled to dark energy - art. no. 061301

被引:153
作者
Brookfield, AW
van de Bruck, C
Mota, DF
Tocchini-Valentini, D
机构
[1] Univ Sheffield, Dept Appl Math, Sheffield S3 7RH, S Yorkshire, England
[2] Univ Sheffield, Dept Phys, Astroparticle Theory & Cosmol Grp, Sheffield S3 7RH, S Yorkshire, England
[3] Univ Oxford, Dept Astrophys, Oxford OX1 3RH, England
[4] Univ Oslo, Inst Theoret Astrophys, N-0315 Oslo, Norway
关键词
D O I
10.1103/PhysRevLett.96.061301
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Cosmological consequences of a coupling between massive neutrinos and dark energy are investigated. In such models, the neutrino mass is a function of a scalar field, which plays the role of dark energy. The evolution of the background and cosmological perturbations are discussed. We find that mass-varying neutrinos can leave a significant imprint on the anisotropies in the cosmic microwave background and even lead to a reduction of power on large angular scales.
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页数:4
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