46 citations · 689 across the 46 of their papers we have counts for
4 papers · 1 filter
Non-negative matrix factorization for self-calibration of photometric redshift scatter in weak lensing surveys
Le Zhang, Yu Yu, Pengjie Zhang
Photo-z error is one of the major sources of systematics degrading the accuracy of weak lensing cosmological inferences. Zhang et al. (2010) proposed a self-calibration method comb…
Recovering lost 21 cm radial modes via cosmic tidal reconstruction
Hong-Ming Zhu, Ue-Li Pen, Yu Yu +1
21 cm intensity mapping has emerged as a promising technique to map the large-scale structure of the Universe, at redshifts from 1 to 10. Unfortunately, many of the key cross-c…
Fast generation of weak lensing maps by the inverse-Gaussianization method
Yu Yu, Pengjie Zhang, Yipeng Jing
To take full advantage of the unprecedented power of upcoming weak lensing surveys, understanding the noise, such as cosmic variance and geometry/mask effects, is as important as u…
Kriging interpolating cosmic velocity field. II. Taking anistropies and multistreaming into account
Yu Yu, Jun Zhang, Yipeng Jing +1
Measuring the volume-weighted peculiar velocity statistics from inhomogeneously and sparsely distributed galaxies/halos, by existing velocity assignment methods, suffers from a sig…