The weakly non-linear density-velocity relation
نویسندگان
چکیده
منابع مشابه
Weakly Nonlinear Density-velocity Relation
We rigorously derive weakly nonlinear relation between cosmic density and velocity fields up to third order in perturbation theory. The density field is described by the mass density contrast, δ. The velocity field is described by the variable θ proportional to the velocity divergence, θ = −f(Ω)−1H 0 ∇ · v, where f(Ω) ≃ Ω, Ω is the cosmological density parameter and H0 is the Hubble constant. O...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1997
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/287.3.591