Real-space 1D matter power spectra

1D P(k)

The real-space 1D matter power spectrum at z = 5 in a concordance cosmology for a resolution sequence in Np/Ng, where Np = number of particles and Ng = number of grid cells for a Particle-Mesh (PM) simulation. The solid line is the prediction using the formalism of Peacock & Dodds (1996, MNRAS, 280, 19). (From Meiksin & White 2004, MNRAS, 350, 1107.)

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