STRAIGHTENING THE DENSITY-DISPLACEMENT RELATION WITH A LOGARITHMIC TRANSFORM

@article{Falck2012STRAIGHTENINGTD,
  title={STRAIGHTENING THE DENSITY-DISPLACEMENT RELATION WITH A LOGARITHMIC TRANSFORM},
  author={B. Falck and M. Neyrinck and M. Aragon-Calvo and G. Lavaux and A. Szalay},
  journal={The Astrophysical Journal},
  year={2012},
  volume={745},
  pages={17}
}
  • B. Falck, M. Neyrinck, +2 authors A. Szalay
  • Published 2012
  • Physics
  • The Astrophysical Journal
  • We investigate the use of a logarithmic density variable in estimating the Lagrangian displacement field motivated by the success of a logarithmic transformation in restoring information to the matter power spectrum. The logarithmic relation is an extension of the linear relation, motivated by the continuity equation, in which the density field is assumed to be proportional to the divergence of the displacement field; we compare the linear and logarithmic relations by measuring both of these… CONTINUE READING
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