42 citations · 171 across the 9 of their papers we have counts for
8 papers · 1 filter
DESI Legacy Imaging Surveys Data Release 9: Cosmological Constraints from Galaxy Clustering and Weak Lensing using the Minimal Bias Model
Haojie Xu, Hekun Li, Jun Zhang +11
We present a tentative constraint on cosmological parameters and from a joint analysis of galaxy clustering and galaxy-galaxy lensing from DESI Legacy Imaging Surveys D…
A linear relation between galaxy-lensing cross-correlations to test the cosmological principle model-independently
Hai Yu, Pengjie Zhang, Jiaxin Wang +2
We discover a linear relation between two sets of galaxy-lensing cross-correlations. This linear relation holds, as long as light follows the geodesic and the metric is Friedmann-L…
Does Concentration Drive the Scatter in the Stellar-to-Halo Mass Relation of Galaxy Clusters?
Ying Zu, Huanyuan Shan, Jun Zhang +10
Concentration is one of the key dark matter halo properties that could drive the scatter in the stellar-to-halo mass relation of massive clusters. We derive robust photometric stel…
Unveiling the Intrinsic Alignment of Galaxies with Self-Calibration and DECaLS DR3 data
Ji Yao, Huanyuan Shan, Pengjie Zhang +2
Galaxy intrinsic alignment (IA) is both a source of systematic contamination to cosmic shear measurement and its cosmological applications, and a source of valuable information on…
First detection of the GI-type of intrinsic alignments of galaxies using the self-calibration method in a photometric galaxy survey
Eske M. Pedersen, Ji Yao, Mustapha Ishak +1
Weak gravitational lensing is one of the most promising cosmological probes to constrain dark matter, dark energy, and the nature of gravity at cosmic scales. Intrinsic alignments…
Separating the Intrinsic Alignment Signal and the Lensing Signal using Self-Calibration in Photo-z Surveys with KiDS450 and KV450 Data
Ji Yao, Eske M. Pedersen, Mustapha Ishak +4
To reach the full potential for the next generation of weak lensing surveys, it is necessary to mitigate the contamination of intrinsic alignments (IA) of galaxies in the observed…
Self-calibration method for II and GI types of intrinsic alignments of galaxies
Ji Yao, Mustapha Ishak, M. A. Troxel
We introduce a self-calibration method that can be applied to the intrinsic ellipticity--intrinsic ellipticity (II) and gravitational shear -- intrinsic ellipticity (GI) types of i…
Effects of Self-Calibration of Intrinsic Alignment on Cosmological Parameter Constraints from Future Cosmic Shear Surveys
Ji Yao, Mustapha Ishak, Weikang Lin +1
Intrinsic alignments (IA) of galaxies have been recognized as one of the most serious contaminants to weak lensing. These systematics need to be isolated and mitigated in order for…