59 citations · 413 across the 28 of their papers we have counts for
28 papers
Constraining gravity with the decay rate of cosmological gravitational potential
Xinyi Zhao, Pengjie Zhang, Fuyu Dong
A key task in cosmology is to test the validity of general relativity (GR) at cosmological scales and, therefore, to distinguish between dark energy and modified gravity (MG) as th…
Introduction to the Chinese Space Station Survey Telescope (CSST)
CSST Collaboration, Yan Gong, Haitao Miao +119
The Chinese Space Station Survey Telescope (CSST) is an upcoming Stage-IV sky survey telescope, distinguished by its large field of view (FoV), high image quality, and multi-band o…
CSST Large Scale Structure Analysis Pipeline: III. Emission-line Redshift Measurement for Slitless Spectra
Jipeng Sui, Hu Zou, Xiaohu Yang +21
The China Space Station Telescope (CSST) is a forthcoming space-based optical telescope designed to co-orbit with the Chinese Space Station. With a planned slitless spectroscopic s…
Cosmological distance forecasts for the CSST Galaxy Survey using BAO peaks
Feng Shi, Jieyi Tian, Zhejie Ding +21
The measurement of cosmological distances using baryon acoustic oscillations (BAO) is crucial for studying the universe's expansion. The Chinese Space Station Telescope (CSST) gala…
Accurately Estimating Redshifts from CSST Slitless Spectroscopic Survey using Deep Learning
Xingchen Zhou, Yan Gong, Xin Zhang +10
Chinese Space Station Telescope (CSST) has the capability to conduct slitless spectroscopic survey simultaneously with photometric survey. The spectroscopic survey will measure sli…
On the capability of high redshift kSZ measurement with galaxy surveys
Ziyang Chen, Pengjie Zhang
The kSZ effect has been detected at z<1 using various techniques and data sets. The ongoing and upcoming spectroscopic galaxy surveys such as DESI and PFS will push the detection b…
CSST large-scale structure analysis pipeline: I. constructing reference mock galaxy redshift surveys
Yizhou Gu, Xiaohu Yang, Jiaxin Han +29
In this paper, we set out to construct a set of reference mock galaxy redshift surveys (MGRSs) for the future Chinese Space-station Survey Telescope (CSST) observation, where subse…
Momentum power spectrum of SDSS galaxies by massE cosmic ruler: 2.1x improvement in measure of growth rate
Yong Shi, Pengjie Zhang, Shude Mao +1
Peculiar motion of galaxies probes the structure growth in the Universe. In this study we employ the galaxy stellar mass-binding energy (massE) relation with only two nuisance para…
Forecast constraints on the baryonic feedback effect from the future kinetic Sunyaev-Zel'dovich effect detection
Yi Zheng, Pengjie Zhang
The baryonic feedback effect is an important systematic error in the weak lensing (WL) analysis. It contributes partly to the tension in the literature. With the next generat…
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…
KiDS-1000: cross-correlation with Planck cosmic microwave background lensing and intrinsic alignment removal with self-calibration
Ji Yao, Huanyuan Shan, Pengjie Zhang +11
Galaxy shear - cosmic microwave background (CMB) lensing convergence cross-correlations contain additional information on cosmology to auto-correlations. While being immune to cert…
An unbiased method of measuring the ratio of two data sets
Zeyang Sun, Pengjie Zhang, Fuyu Dong +5
In certain cases of astronomical data analysis, the meaningful physical quantity to extract is the ratio between two data sets. Examples include the lensing ratio, the interlop…
The first direct measurement of gravitational potential decay rate at cosmological scales and improved dark energy constraint
Fuyu Dong, Pengjie Zhang, Zeyang Sun +1
The integrated Sachs-Wolfe (ISW) effect probes the decay rate () of large scale gravitational potential and therefore provides unique constraint on dark energy (DE). However it…
Thermal energy census with the Sunyaev-Zel'dovich effect of DESI galaxy clusters/groups and its implication on the weak lensing power spectrum
Ziyang Chen, Pengjie Zhang, Xiaohu Yang
We carry out a thermal energy census of hot baryons at , by cross-correlating the \emph{Planck} MILCA y-map with 0.8 million clusters/groups selected from the Yang et.al (20…
Cross-correlation of Planck CMB lensing with DESI galaxy groups
Zeyang Sun, Ji Yao, Fuyu Dong +3
We measure the cross-correlation between galaxy groups constructed from DESI Legacy Imaging Survey DR8 and \emph{Planck} CMB lensing, over overlapping sky area of 16876 …
Detection of pairwise kSZ effect with DESI galaxy clusters and Planck
Ziyang Chen, Pengjie Zhang, Xiaohu Yang +1
We report a detection of the pairwise kinematic Sunyaev-Zel'dovich (kSZ) effect, combining galaxy clusters in DESI imaging surveys and the Planck temperature maps. The detecti…
Self-calibrating interloper bias in spectroscopic galaxy clustering surveys
Yan Gong, Haitao Miao, Pengjie Zhang +1
Contamination of interloper galaxies due to misidentified emission lines can be a big issue in the spectroscopic galaxy clustering surveys, especially in future high-precision obse…
Detection of cross-correlation between CMB Lensing and low-density points
Fuyu Dong, Pengjie Zhang, Le Zhang +4
Low Density Points (LDPs, \citet{2019ApJ...874....7D}), obtained by removing high-density regions of observed galaxies, can trace the Large-Scale Structures (LSSs) of the universe.…
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…
Measuring the integrated Sachs-Wolfe effect from the low-density regions of the universe
Fuyu Dong, Yu Yu, Jun Zhang +2
The integrated Sachs-Wolfe (ISW) effect is caused by the decay of cosmological gravitational potential, and is therefore a unique probe of dark energy. However, its robust detectio…
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…