78 citations · 452 across the 23 of their papers we have counts for
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astro-ph.CO2014★ 25 cited
Determination of the large scale volume weighted halo velocity bias in simulations
Yi Zheng, Pengjie Zhang, Yipeng Jing
A profound assumption in peculiar velocity cosmology is at sufficiently large scales, where is the volume weighted halo(galaxy) velocity bias with respect to the matt…
astro-ph.CO2014★ 26 cited
Sampling Artifact in Volume Weighted Velocity Measurement.--- II. Detection in simulations and comparison with theoretical modelling
Yi Zheng, Pengjie Zhang, Yipeng Jing
Measuring the volume weighted velocity power spectrum suffers from a severe systematic error, due to imperfect sampling of the velocity field from inhomogeneous distribution of dar…
astro-ph.CO2014★ 30 cited
Sampling Artifact in Volume Weighted Velocity Measurement.--- I. Theoretical Modelling
Pengjie Zhang, Yi Zheng, Yipeng Jing
Cosmology based on large scale peculiar velocity preferes volume weighted velocity statistics. However, measuring the volume weighted velocity statistics from inhomogeneously distr…