| Rejuvenating the matter power spectrum: restoring information with a logarithmic density mapping (2009) | |||||||||
Abstract | |||||||||
| We find that nonlinearities in the dark-matter power spectrum are dramatically smaller if the density field first undergoes a logarithmic mapping. In the Millennium simulation, this procedure produces a power spectrum with a shape hardly departing from the linear power spectrum for k . Comment: 4 pages, 5 figures, accepted to ApJ Letters. Minor changes to match accepted version. Illustrative large-scale-structure sonifications at http://skysrv.pha.jhu.edu/~neyrinck/sonifylss.html | |||||||||
Publication details | |||||||||
| |||||||||