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- W2281656822 abstract "We analyse the evolution of scalar field dark energy in the spherical halos of dark matter at the late stages of formation of gravitationally bound systems in the expanding Universe. The dynamics of quintessential dark energy at the center of dark matter halo strongly depends on the value of effective sound speed $c_s$ (in units of speed of light). If $c_ssim1$ (classical scalar field) then the dark energy in the gravitationally bound systems is only slightly perturbed and its density is practically the same as in cosmological background. The dark energy with small value of sound speed ($c_s<0.1$), on the contrary, is important dynamical component of halo at all stages of their evolution: linear, non-linear, turnaround, collapse, virialization and later up to current epoch. These properties of dark energy can be used for constraining the value of effective sound speed $c_s$ by comparison the theoretical predictions with observational data related to the large scale gravitationally bound systems." @default.
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- W2281656822 date "2016-02-27" @default.
- W2281656822 modified "2023-10-01" @default.
- W2281656822 title "Dynamics of minimally coupled dark energy in spherical halos of dark matter" @default.
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- W2281656822 doi "https://doi.org/10.1007/s10714-016-2031-8" @default.
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