Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Chinese Academy of SciencesCN1.2k papers
- University of Chinese Academy of SciencesCN691 papers
- National Astronomical ObservatoriesCN630 papers
- Peking UniversityCN510 papers
- Tsinghua UniversityCN350 papers
- Institute of High Energy PhysicsCN248 papers
- Institute of Theoretical PhysicsCN230 papers
- Centre National de la Recherche ScientifiqueFR209 papers
- University of Science and Technology of ChinaCN175 papers
- Nanjing UniversityCN165 papers
- Beijing Computational Science Research CenterCN148 papers
- Kavli Institute for Theoretical SciencesCN142 papers
28 papers · 2 filters
Model-independent Estimations for the Cosmic Curvature from the Latest Strong Gravitational Lensing Systems
Huan Zhou, Zheng-Xiang Li
Model-independent measurements for the cosmic spatial curvature, which is related to the nature of cosmic space-time geometry, plays an important role in cosmology. On the basis of…
How much primordial tensor mode is allowed?
Moumita Aich, Yin-Zhe Ma, Wei-Ming Dai +1
The presence of a significant amount of gravitational radiation in the early Universe affects the total energy density and hence the expansion rate in the early epoch. In this work…
Exploring the "--" relation of HII galaxies and giant extragalactic HII regions acting as standard candles
Yan Wu, Shuo Cao, Jia Zhang +4
Cosmological applications of HII galaxies (HIIGx) and giant extragalactic HII regions (GEHR) to construct the Hubble diagram at higher redshifts require knowledge of the "--"…
Constraints on Running of Non-Gaussianity from Large Scale Structure Probes
Ji-Ping Dai, Jun-Qing Xia
In this letter we present constraints on the scale-dependent "local" type primordial non-Gaussianity, which is described by non-Gaussianity's spectral index , from the…
Testing the Universe Jointly with the Redshift-dependent Expansion rate and Angular-diameter and Luminosity Distances
Hao-Yi Wan, Shu-Lei Cao, Fulvio Melia +1
We use three different data sets, specifically measurements from cosmic chronometers, the HII-galaxy Hubble diagram, and reconstructed quasar-core angular-size measurements,…
The constraint ability of Hubble parameter by gravitational wave standard sirens on cosmological parameters
Tong-Jie Zhang, Yang Liu, Zhi-E Liu +3
In this paper, we present the application of a new method measuring Hubble parameter by using the anisotropy of luminosity distance() of the gravitational wave(GW) st…
Direct test of the FLRW metric from strongly lensed gravitational wave observations
Shuo Cao, Jingzhao Qi, Zhoujian Cao +4
The assumptions of large-scale homogeneity and isotropy underly the familiar Friedmann-Lema\^ıtre-Robertson-Walker (FLRW) metric that appears to be an accurate description of our U…
Testing cosmic opacity with the combination of strongly lensed and unlensed supernova Ia
Yu-Bo Ma, Shuo Cao, Jia Zhang +4
In this paper, we present a scheme to investigate the opacity of the Universe in a cosmological-model-independent way, with the combination of current and future measurements of ty…
Model-independent determination of cosmic curvature based on Padé approximation
Shi-Yu Li, Yun-Long Li, Tong-Jie Zhang +1
Given observations of the standard candles and the cosmic chronometers, we apply Padé parameterization to the comoving distance and the Hubble paramter to find how stringent the co…
Implications from simulated strong gravitational lensing systems: constraining cosmological parameters using Gaussian Processes
Tonghua Liu, Shuo Cao, Jia Zhang +4
Strongly gravitational lensing systems (SGL) encodes cosmology information in source/lens distance ratios , which ca…
Reconstructing Functions and Estimating Parameters with Artificial Neural Networks: A Test with the Hubble Parameter and SNe Ia
Guo-Jian Wang, Xiao-Jiao Ma, Si-Yao Li +1
In this work, we propose a new nonparametric approach for reconstructing a function from observational data using an Artificial Neural Network (ANN), which has no assumptions about…
Constraining the Evolution of the Baryon Fraction in the IGM with FRB and H(z) data
Jun-Jie Wei, Zhengxiang Li, He Gao +1
Extragalactic dispersion measures (DMs) obtained from observations of fast radio bursts (FRBs) are an excellent tool for probing intergalactic medium (IGM) and for conducting cosmo…
The model-independent degeneracy-breaking point in cosmological models with interacting Dark Energy and Dark Matter
Z. Zhou, T. J. Zhang, T. P. Li
We study cosmological models with interaction between dark energy (DE) and dark matter (DM). For the interaction term in cosmic evolution equations, there is a model-independen…
Prospects of strongly lensed repeating fast radio bursts: complementary constraints on dark energy evolution
Bin Liu, Zhengxiang Li, He Gao +1
Fast radio bursts (FRBs) are highly dispersed and probably extragalactic radio flashes with millisecond-duration. Recently, the Canadian Hydrogen Intensity Mapping Experiment (usin…
Bounds on WIMP dark matter from galaxy clusters at low redshift
Xiuhui Tan, Manuel Colavincenzo
The study of the cross-correlation angular power spectrum between gravitational tracers and electromagnetic signals can be a powerful tool to constrain Dark Matter (DM) microscopic…
The gas depletion factor in galaxy clusters: implication from Atacama Cosmology Telescope Polarization experiment measurements
Xiaogang Zheng, Jing-Zhao Qi, Shuo Cao +4
The gas depletion factor , i.e., the average ratio of the gas mass fraction to the cosmic mean baryon fraction of galaxy clusters, plays a very important role in the cosmolog…
Searching for gamma-ray emission from galaxy clusters at low redshift
Manuel Colavincenzo, Xiuhui Tan, Simone Ammazzalorso +4
We report the identification of a positive cross-correlation signal between the unresolved -ray emission, measured by the \emph{Fermi} Large Area Telescope, and four different g…
Model Comparison of Dark Energy models Using Deep Network
Shi-Yu Li, Yun-Long Li, Tong-Jie Zhang
This work uses a combination of a variational auto-encoder and generative adversarial network to compare different dark energy models in light of observations, e.g., the distance m…
Probing the Hubble Tension with an Infinite-Future Condition on the Hubble Parameter
Yuan-Bo Xie, Cheqiu Lyu, Zhiyuan Mo +2
We study the impact of imposing an infinite-future condition on Gaussian-process (GP) reconstructions of from 37 cosmic-chronometer measurements. Implementing the asymptotic…
Toward a direct measurement of the cosmic acceleration: roadmap and forecast on FAST
Kang Jiao, Jian-Chen Zhang, Tong-Jie Zhang +3
HI absorption systems are great targets for direct measurement of the Sandage-Loeb (SL) effect throughout a wide range of redshift for ground-based radio telescopes. We demonstrate…
Complementary constraints on dark energy equation of state from strongly lensed gravitational wave
Bin Liu, Zhengxiang Li, Zong-Hong Zhu
It has been shown that time delay of strong gravitational lensing is not only an effective cosmological probe to constrain the Hubble constant, the matter density and the curvature…
Cosmology-independent estimate of the fraction of baryon mass in the IGM from fast radio burst observations
Zhengxiang Li, He Gao, Jun-Jie Wei +3
The excessive dispersion measure (DM) of fast radio bursts (FRBs) has been proposed to be a powerful tool to study intergalactic medium (IGM) and to perform cosmography. One issue…
Revisiting the Instability Problem of Interacting Dark Energy Model in the Parametrized Post-Friedmann Framework
Ji-Ping Dai, Junqing Xia
Dark energy might interact with dark matter in a direct, non-gravitational way, which can help remedy several theoretical defects. In order to find out the properties of interactin…
Testing the Etherington's distance duality relation at higher redshifts: the combination of radio quasars and gravitational waves
Jing-Zhao Qi, Shuo Cao, Chenfa Zheng +4
In this paper we analyse the implications of the latest cosmological data sets to test the Etherington's distance duality relation (DDR), which connects the luminosity distance $D_…