123 citations · 563 across the 35 of their papers we have counts for
5 papers · 1 filter
Reconstructing Cosmic Peculiar Velocities from the Mildly Nonlinear Density Field
Andrzej Kudlicki, Michal Chodorowski, Tomasz Plewa +1
We present a numerical study of the cosmic density vs. velocity divergence relation (DVDR) in the mildly non-linear regime. We approximate the dark matter as a non-relativistic pre…
Redshift-space density versus real-space velocity comparison
Michal Chodorowski
I propose to compare the redshift-space density field directly to the REAL-SPACE velocity field. Such a comparison possesses all of the advantages of the conventional redshift-spac…
Comparing the redshift-space density field to the real-space velocity field
Michal Chodorowski
I derive a nonlinear local relation between the redshift-space density field and the real-space velocity field. The relation accounts for radial character of redshift distortions,…
On the vorticity of flow in redshift space
Michal Chodorowski, Adi Nusser
Given an irrotational (vorticity free) velocity field in real space, we prove that, in the distant observer limit and in the absence of multi-valued zones, the associated velocity…
Nonlinearity and stochasticity in the density--velocity relation
F. Bernardeau, M. J. Chodorowski, E. L. Lokas +2
We present results of the investigations of the statistical properties of a joint density and velocity divergence probability distribution function (PDF) in the mildly non-linear r…