413 citations · 1k across the 31 of their papers we have counts for
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Mass Reconstruction of Galaxy-scale Strong Gravitational Lenses Using a Broken Power-law Model
Wei Du, Liping Fu, Yiping Shu +3
With mock strong gravitational lensing images, we investigate the performance of the broken power-law (BPL) model proposed by \citet{2020ApJ...892...62D} on the mass reconstruction…
Constraining interacting dark energy models with the halo concentration-mass relation
Yu Zhao, Yun Liu, Shihong Liao +3
The interacting dark energy (IDE) model is a promising alternative cosmological model which has the potential to solve the fine-tuning and coincidence problems by considering the i…
Photometric redshift estimates using Bayesian neural networks in the CSST survey
Xingchen Zhou, Yan Gong, Xian-Min Meng +5
Galaxy photometric redshift (photo-) is crucial in cosmological studies, such as weak gravitational lensing and galaxy angular clustering measurements. In this work, we try to e…
Extracting Photometric Redshift from Galaxy Flux and Image Data using Neural Networks in the CSST Survey
Xingchen Zhou, Yan Gong, Xian-Min Meng +6
The accuracy of galaxy photometric redshift (photo-) can significantly affect the analysis of weak gravitational lensing measurements, especially for future high-precision surve…
The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 quasar sample: First measurement of Baryon Acoustic Oscillations between redshift 0.8 and 2.2
Metin Ata, Falk Baumgarten, Julian Bautista +60
We present measurements of the Baryon Acoustic Oscillation (BAO) scale in redshift-space using the clustering of quasars. We consider a sample of 147,000 quasars from the extended…
Constraining Gravity Theory Using Weak Lensing Peak Statistics from the Canada-France-Hawaii-Telescope Lensing Survey
Xiangkun Liu, Baojiu Li, Gong-Bo Zhao +8
In this Letter, we report the observational constraints on the Hu-Sawicki theory derived from weak lensing peak abundances, which are closely related to the mass function of…
Mass-concentration relation of clusters of galaxies from CFHTLenS
Wei Du, Zuhui Fan, Huanyuan Shan +4
Based on weak lensing data from the Canada-France-Hawaii Telescope Lensing Survey (CFHTLenS), in this paper we study the mass-concentration (-) relation for redMaP…
Effects of center offset and noise on weak-lensing derived concentration-mass relation of dark matter halos
Wei Du, Zuhui Fan
With the halo catalog from the {\it Millennium Simulation}, we analyze the weak-lensing measured density profiles for clusters of galaxies, paying attention to the determination of…
On the Full Spectrum Fitting of Luminous Red Galaxies by Using ULySS and STARLIGHT
Gaochao Liu, Youjun Lu, Xuelei Chen +2
In this paper, we select a sample of quiescent luminous red galaxies (LRGs) from Sloan Digital Sky Survey Data Release 7 (SDSS DR7) with signal-to-noise ratio (S/N) substantially h…
The Age-Redshift Relation For Luminous Red Galaxies Obtained From the Full Spectrum Fitting and Its Cosmological Implications
Gaochao Liu, Youjun Lu, Xuelei Chen +3
The relative age of galaxies at different redshifts can be used to infer the Hubble parameter and put constraints on cosmological models. We select 23,883 quiescent luminous red ga…
Star formation histories and evolution of 35 brightest E+A galaxies from SDSS DR5
Wei Du, A-Li Luo, Philippe Prugniel +2
We pick out the 35 brightest galaxies from Goto's E+A galaxies catalogue which are selected from the Sloan Digital Sky Survey Data Release 5. The spectra of E+As are prominently ch…