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- W2017649110 abstract "The red-shift space distortions in the galaxy power spectrum can be used to measure the growth rate of matter density perturbations delta_m. For dynamical dark energy models in General Relativity we provide a convenient analytic formula of f(z) sigma_8(z) written as a function of the redshift z, where f=d ln delta_m/d ln a (a is the cosmological scale factor) and sigma_8 is the rms amplitude of over-density at the scale 8 h^{-1} Mpc. Our formula can be applied to the models of imperfect fluids, quintessence, and k-essence, provided that the dark energy equation of state w does not vary significantly and that the sound speed is not much smaller than 1. We also place observational constraints on dark energy models of constant w and tracking quintessence from the recent data of red-shift space distortions." @default.
- W2017649110 created "2016-06-24" @default.
- W2017649110 creator A5000820508 @default.
- W2017649110 creator A5013481498 @default.
- W2017649110 creator A5055679331 @default.
- W2017649110 date "2013-01-24" @default.
- W2017649110 modified "2023-10-17" @default.
- W2017649110 title "Testing for dynamical dark energy models with redshift-space distortions" @default.
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- W2017649110 doi "https://doi.org/10.1088/1475-7516/2013/01/030" @default.
- W2017649110 hasPublicationYear "2013" @default.
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