The DESI DR1 peculiar velocity survey: Growth rate measurements from the galaxy power spectrum

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Table 1.

Parameters of the power spectrum models.

Parameter	Explanation
f ∈ [0, +∞)	The linear growth rate of the large- scale structures, $f \equiv \frac{d ln D (a)}{d ln a}$ $Mathematical equation: $ f\equiv \frac{d\ln\,D(a)}{d\ln\,a} $$ .

b₁ ∈ [0, +∞)	The linear biasing parameter.

b₂ ∈ ( − ∞, +∞)	The second-order local biasing parameter.

b_s ∈ ( − ∞, +∞)	The second-order non-local biasing parameter.

b_3nl ∈ ( − ∞, +∞)	The third-order biasing parameter.

σ_vT ∈ [0,+∞)[Mpc h⁻¹]	The non-linear velocity dispersion for P₀₂, P₀₄, P₁₂, P₂₂ and the vector part of P₁₃.

σ_vT ∈ [0,+∞)[Mpc h⁻¹]	The non-linear velocity dispersion for P₀₃ and the scaler part of P₁₃.

Notes. For the density field and the momentum field, each of them have the above set of parameters.

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