f(R) Cosmology and Massive Neutrinos
f(R) Cosmology and Massive Neutrinos
复制标题
f(R) 宇宙学和大质量中微子
DOI:
10.1142/s2010194512005739
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发表时间:
2012
期刊:
影响因子:
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通讯作者:
A. A. Starobinsky and J. Yokoyama
中科院分区:
文献类型:
--
作者:
H. Motohashi;A. A. Starobinsky and J. Yokoyama
f(R) gravity provides viable cosmology alternative to the ΛCDM model. We discuss the effect of massive neutrinos on matter power spectrum in this theory, to show that the anomalous growth of density fluctuations on small scales due to the scalaron force can be compensated by free streaming of neutrinos. As a result, models which predict observable deviation of the equation-of-state parameter wDEfrom wDE= -1 may be reconciled with observations of matter clustering if the total neutrino mass is O(0.5 eV).