Publications (40)
What drives the M*-SFR relation turning over at high masses? The role of bulges
Zhizheng Pan, Xianzhong Zheng, Weipeng Lin +4
It is unclear whether bulge growth is responsible for the flattening of the star formation main sequence (MS) at the high mass end. To investigate the role of bulges in shaping the…
ELUCID IV: Galaxy Quenching and its Relation to Halo Mass, Environment, and Assembly Bias
Huiyuan Wang, H. J. Mo, Sihan Chen +17
We examine the quenched fraction of central and satellite galaxies as a function of galaxy stellar mass, halo mass, and the matter density of their large scale environment. Matter…
Contrasting the Implicit Method in Incoherent Lagrangian and the Correction Map Method in Hamiltonian
Junjie Luo, Jie Feng, Hong-Hao Zhang +1
The equations of motion for a Lagrangian mainly refer to the acceleration equations, which can be obtained by the Euler--Lagrange equations. In the post-Newtonian Lagrangian form o…
Solving the puzzle of subhalo spins
Yang Wang, Weipeng Lin, Frazer R. Pearce +3
Investigating the spin parameter distribution of subhaloes in two high resolution isolated halo simulations, re- cent work by Onions et al. suggested that typical subhalo spins are…
Performance of different correction maps in the extended phase-space method for spinning compact binaries
Junjie Luo, Jie Feng, Hong-Hao Zhang +1
Since the first detection of gravitational waves by the LIGO/VIRGO team, the related research field has attracted more attention. The spinning compact binaries system, as one of th…
Gaussianizing the non-Gaussian lensing convergence field I: the performance of the Gaussianization
Yu Yu, Pengjie Zhang, Weipeng Lin +2
Motivated by recent works of Neyrinck et al. 2009 and Scherrer et al. 2010, we proposed a Gaussianization transform to Gaussianize the non-Gaussian lensing convergence field .…
Equipartition Dark Energy
Weipeng Lin, Zhiqi Huang, Yiming Hu +2
We explain dark energy with equipartition theorem in string landscape.
Mock Observations: Three Different Types of Galaxy Alignment in TNG100 Simulations
Yanyao Lan, Lin Tang, Weipeng Lin +1
In this study, galaxy samples have been generated using mock observation techniques based on the results of TNG100-1 simulations to investigate three forms of intrinsic alignment:…
Sussing Merger Trees: Stability and Convergence
Yang Wang, Frazer R. Pearce, Alexander Knebe +15
Merger trees are routinely used to follow the growth and merging history of dark matter haloes and subhaloes in simulations of cosmic structure formation. Srisawat et al. (2013) co…
The kinetic SZ tomography with spectroscopic redshift surveys
Jiawei Shao, Pengjie Zhang, Weipeng Lin +2
The kinetic Sunyaev Zel'dovich effect (kSZ) effect is a potentially powerful probe to the missing baryons. However, the kSZ signal is overwhelmed by various contaminations and the…
Importance of Mock Observations in Validating Galaxy Properties for Cosmological Simulations
Lin Tang, Weipeng Lin, Yang Wang +1
The galaxy luminosity function and galaxy stellar mass function are fundamental statistics in the testing of galaxy formation models. Theoretical predictions based on cosmological…
Quenching depends on morphologies: implications from the ultraviolet-optical radial color distributions in Green Valley Galaxies
Zhizheng Pan, Jinrong Li, Weipeng Lin +2
In this Letter, we analyse the radial UV-optical color distributions in a sample of low redshift green valley (GV) galaxies, with the Galaxy Evolution Explorer (GALEX)+Sloan Digita…
Peculiar Velocity Decomposition, Redshift Space Distortion and Velocity Reconstruction in Redshift Surveys. II. Dark Matter Velocity Statistics
Yi Zheng, Pengjie Zhang, Yipeng Jing +2
Massive spectroscopic redshift surveys open a promising window to accurately measure peculiar velocity at cosmological distances through redshift space distortion (RSD). In paper I…
Mock Observations: Formation and Evolution of diffuse light in Galaxy Groups and Clusters in the IllustrisTNG Simulations
Lin Tang, Weipeng Lin, Yang Wang +2
In this paper, by analyzing mock images from the IllustrisTNG100-1 simulation, we examine the properties of the diffuse light and compare them to those of central and satellite gal…
Modeling the Time Evolution of Compact Binary Systems with Machine Learning
Jianqi Yan, Junjie Luo, Yifan Zeng +4
This work introduces advanced computational techniques for modeling the time evolution of compact binary systems using machine learning. The dynamics of compact binary systems, suc…
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…
Estimation of the Galaxy Quenching Rate in the Illustris Simulation
Yang Wang, Xuan Liu, Weishan Zhu +2
Quenching is a key topic in exploring the formation and evolution of galaxies. In this work, we study the quenching rate, i.e., the variation in the fraction of quenched galaxies p…
Galaxy Light profile neural Networks (GaLNets). II. Bulge-Disc decomposition in optical space-based observations
Chen Qiu, Nicola R. Napolitano, Rui Li +12
Bulge-disk (B-D) decomposition is an effective diagnostic to characterize the galaxy morphology and understand its evolution across time. So far, high-quality data have allowed det…
Spatially-resolved NUV-r color of local star-forming galaxies and clues for quenching
Zhizheng Pan, Xianzhong Zheng, Weipeng Lin +4
Using a sample of ~6,000 local face-on star-forming galaxies (SFGs), we examine the correlations between the NUV-r colors both inside and outside the half-light radius, stellar mas…
The SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Overview and Early Data
Kyle S. Dawson, Jean-Paul Kneib, Will J. Percival +143
The Extended Baryon Oscillation Spectroscopic Survey (eBOSS) will conduct novel cosmological observations using the BOSS spectrograph at Apache Point Observatory. Observations will…
Ring structure and warp of NGC5907 -- Interaction with dwarf galaxies
Zhaohui Shang, Zhongyuan Zheng, Elias Brinks +22
The edge-on, nearby spiral galaxy NGC5907 has long been used as the prototype of a ``non-interacting'' warped galaxy. We report here the discovery of two interactions with companio…
Cosmology with galaxy clusters using machine learning. Application to eROSITA Data
Fucheng Zhong, Nicola R. Napolitano, Johan Comparat +8
Context: We present the first Cosmological Parameter inferences from eROSITA X-ray observations of galaxy clusters using a Machine Learning algorithm. Methods: We train a Random Fo…
The Distribution of Satellites Around Central Galaxies in a Cosmological Hydrodynamical Simulation
Xuce Dong, Weipeng Lin, Xi Kang +3
Observations have shown that the spatial distribution of satellite galaxies is not random, but rather is aligned with the major axes of central galaxies (CGs). The strength of the…
The source-lens clustering effect in the context of lensing tomography and its self-calibration
Yu Yu, Pengjie Zhang, Weipeng Lin +1
Cosmic shear can only be measured where there are galaxies. This source-lens clustering (SLC) effect has two sources, intrinsic source clustering and cosmic magnification (magnific…
About One-point Statistics of the Ratio of Two Fourier-transformed Cosmic Fields and an Application
Ming Li, Jun Pan, Pengjie Zhang +7
The Fourier transformation is an effective and efficient operation of Gaussianization at the one-point level. Using a set of N-body simulation data, we verified that the one-point…
Preserving Domain Private Representation via Mutual Information Maximization
Jiahong Chen, Jing Wang, Weipeng Lin +2
Recent advances in unsupervised domain adaptation have shown that mitigating the domain divergence by extracting the domain-invariant representation could significantly improve the…
The thermal SZ tomography
Jiawei Shao, Pengjie Zhang, Weipeng Lin +1
The thermal Sunyaev-Zel'dovich (tSZ) effect directly measures the thermal pressure of free electrons integrated along the line of sight and thus contains valuable information on th…
Cosmology with Galaxy Cluster Properties using Machine Learning
Lanlan Qiu, Nicola R. Napolitano, Stefano Borgani +10
[Abridged] Galaxy clusters are the most massive gravitationally-bound systems in the universe and are widely considered to be an effective cosmological probe. We propose the first…
From outside-in to inside-out: galaxy assembly mode depends on stellar mass
Zhizheng Pan, Jinrong Li, Weipeng Lin +3
In this Letter, we investigate how galaxy mass assembly mode depends on stellar mass , using a large sample of 10, 000 low redshift galaxies. Our galaxy sample is s…
Total and dark mass from observations of galaxy centers with Machine Learning
Sirui Wu, Nicola R. Napolitano, Crescenzo Tortora +4
The galaxy total mass inside the effective radius encode important information on the dark matter and galaxy evolution model. Total "central" masses can be inferred via galaxy dyna…
Full-sky ray-tracing simulation of weak lensing using ELUCID simulations: exploring galaxy intrinsic alignment and cosmic shear correlations
Chengliang Wei, Guoliang Li, Xi Kang +15
The intrinsic alignment of galaxies is an important systematic effect in weak-lensing surveys, which can affect the derived cosmological parameters. One direct way to distinguish d…
Mock Observations: Morphological Analysis of Galaxies in TNG100 Simulations
Jun-Yu Gong, Weipeng Lin, Lin Tang +1
In this study, we investigate the morphology of galaxies in the TNG100 simulation by applying mock observation techniques and compare the results with the observational data from t…
Gamma Analytical Modeling Evolution (GAME) I: The physical implications of deriving the stellar mass functions from z=0 to z=8
Antonios Katsianis, Qingshan Wang, Xiaohu Yang +13
The growth model is an effective parameterization employed across various scientific disciplines and scales to depict growth. It has been demonstrated that the cosmic star for…
Satellite Alignment: III. Satellite Galaxies Spatial Distribution and their Dependence on Redshift with A Novel Galaxy Finder
Lin Tang, Weipeng Lin, Yang Wang
After extensively explored, broad agreement between observations and theories has been reached that satellites are preferentially aligned with major axes of their host centrals. Th…
The spin and orientation of dark matter halos within cosmic filaments
Youcai Zhang, Xiaohu Yang, Andreas Faltenbacher +3
Clusters, filaments, sheets and voids are the building blocks of the cosmic web. In this study, we present and compare two distinct algorithms for finding cosmic filaments and shee…
Satellite Alignment: I. Distribution of Substructures and Their Dependence On Assembly History From N-Body Simulations
Yang Ocean Wang, Weipeng Lin, Xi Kang +3
Observations have shown that the spatial distribution of satellite galaxies is not random, but aligned with the major axes of central galaxies. This alignment is dependent on galax…
Bulk flow of halos in ÎCDM simulation
Ming Li, Jun Pan, Liang Gao +10
Analysis of the Pangu N-body simulation validates that the bulk flow of halos follows a Maxwellian distribution which variance is consistent with the prediction of the linear theor…
Universal Fitting Formulae for the Peak Concentration of Dark Matter Halos
Dao-zhou Wang, Weipeng Lin, Tian-Cheng Luan
The prediction of the structural properties of dark matter halos is crucial for studies in modern cosmology and galaxy formation. Utilizing a comprehensive suite of N-body simulati…
Dissipated Correction Map Method with Trapezoidal Rule for the Simulations of Gravitational Waves from Spinning Compact Binary
Junjie Luo, Hong-Hao Zhang, Weipeng Lin
The correction map method means extended phase-space algorithm with correction map. In our research, we have developed a correction map method, specifically the dissipated correcti…
Gaussianizing the non-Gaussian lensing convergence field II: the applicability to noisy data
Yu Yu, Pengjie Zhang, Weipeng Lin +2
In paper I (Yu et al. [1]), we show through N-body simulation that a local monotonic Gaussian transformation can significantly reduce non-Gaussianity in a noise-free lensing conver…