Matter Power Spectrum in f(R) Gravity with Massive Neutrinos

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概要

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• The effect of massive neutrinos on matter power spectrum is discussed in the context of f(R) gravity. It is shown that the anomalous growth of density fluctuations on small scales due to the scalaron force can be compensated by the free streaming of neutrinos. As a result, models that predict observable deviation of the equation-of-state parameter w_<DE> from w_<DE>=-1 can be reconciled with observations of matter clustering if the total neutrino mass is O(0.5eV).

• 2010-09-25

著者

• MOTOHASHI Hayato

  Department of Physics, Graduate School of Science, The University of Tokyo

• STAROBINSKY Alexei

  Research Center for the Early Universe (RESCEU), Graduate School of Science, The University of Tokyo

• Starobinsky Alexei

  Research Center For The Early Universe (resceu) Graduate School Of Science The University Of Tokyo:l

• Motohashi Hayato

  Department Of Physics Graduate School Of Science The University Of Tokyo:research Center For The Ear

• Yokoyama Jun'ichi

  Univ. Tokyo Kashiwa Jpn

• Yokoyama Jun'ichi

  Univ. Tokyo Tokyo Jpn

関連論文

• Phantom Boundary Crossing and Anomalous Growth Index of Fluctuations in Viable f(R) Models of Cosmic Acceleration(Astrophysics and Cosmology)
• Matter Power Spectrum in f(R) Gravity with Massive Neutrinos
• On the Realization of MSSM Inflation(Astrophysics and Cosmology)
• Phantom Boundary Crossing and Anomalous Growth Index of Fluctuations in Viable f(R) Models of Cosmic Acceleration
• Constraining Cosmological Parameters by the Cosmic Inversion Method(Astrophysics and Relativity)
• Matter Power Spectrum in f(R) Gravity with Massive Neutrinos

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