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
41 papers · 2 filters
Hunting Galactic Axion Dark Matter with Gravitationally Lensed Fast Radio Bursts
Ran Gao, Zhengxiang Li, Kai Liao +3
Ultralight axion or axionlike particles are one of the most promising candidates for dark matter because they are a well-motivated solution for the theoretical strong problem…
An implementation of nDGP gravity in Pinocchio
Yanling Song, Bin Hu, Chengzong Ruan +2
In this paper we investigate dark matter structure formation in the normal branch of the Dvali-Gabadadze-Porrati (nDGP) model using the PINOCCHIO algorithm. We first present 2nd or…
A Non-parametric Reconstruction of the Hubble Parameter Based on Radial Basis Function Neural Networks
Jian-Chen Zhang, Yu Hu, Kang Jiao +5
Accurately measuring the Hubble parameter is vital for understanding the expansion history and properties of the universe. In this paper, we propose a new method that supplements t…
Constraints on the velocity of gravitational waves from NANOGrav 15-year data set
Yan-Chen Bi, Yu-Mei Wu, Zu-Cheng Chen +1
General relativity predicts that gravitational waves propagate at the speed of light. Although ground-based gravitational-wave detectors have successfully constrained the velocity…
Constraining the Graviton Mass with the NANOGrav 15-Year Data Set
Yu-Mei Wu, Zu-Cheng Chen, Yan-Chen Bi +1
The recently detected stochastic signal by several pulsar timing array collaborations, offers an opportunity to scrutinize the fundamental properties of gravity, including the pote…
Simultaneously probing the sound speed and equation of state of the early Universe with pulsar timing arrays
Lang Liu, You Wu, Zu-Cheng Chen
Recently, several major pulsar timing array (PTA) collaborations have assembled strong evidence for the existence of a gravitational-wave background at frequencies around the nanoh…
Search for Non-Tensorial Gravitational-Wave Backgrounds in the NANOGrav 15-Year Data Set
Zu-Cheng Chen, Yu-Mei Wu, Yan-Chen Bi +1
The recent detection of a stochastic signal in the NANOGrav 15-year data set has aroused great interest in uncovering its origin. However, the evidence for the Hellings-Downs corre…
Observational constraints on interactions between dark energy and dark matter with momentum and energy transfers
Xiaolin Liu, Shinji Tsujikawa, Kiyotomo Ichiki
We place observational constraints on a dark energy (DE) model in which a quintessence scalar field is coupled to dark matter (DM) through momentum and energy exchanges.The mom…
Exploring the NANOGrav Signal and Planet-mass Primordial Black Holes through Higgs Inflation
Zhu Yi, Zhi-Qiang You, You Wu +2
The data recently released by the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) provides compelling evidence supporting the existence of a stochastic sign…
Toward a direct measurement of the cosmic acceleration: The pilot observation of H I 21cm absorption line at FAST
Jiangang Kang, Chang-Zhi Lu, TongJie Zhang +1
This study presents results on detecting neutral atomic hydrogen (HI) 21cm absorption in the spectrum of PKS1413+135 at redshift . The observation was conducted by FA…
A multitracer analysis for the eBOSS galaxy sample based on the effective field theory of large-scale structure
Ruiyang Zhao, Xiaoyong Mu, Rafaela Gsponer +8
We perform a multitracer full-shape analysis in Fourier space based on the effective field theory of large-scale structure (EFTofLSS) using the complete Sloan Digital Sky Survey IV…
Model-independent reconstruction of the primordial curvature power spectrum from PTA data
Zhu Yi, Zhi-Qiang You, You Wu
Recently released data from pulsar timing array (PTA) collaborations provide strong evidence for a stochastic signal consistent with a gravitational-wave background, potentially or…
Cosmological neutrino N-body simulations of dark matter halo
Yu Chen, Chang-Zhi Lu, Juan Li +3
The study of massive neutrinos and their interactions is a critical aspect of contemporary cosmology. Recent advances in parallel computation and high-performance computing provide…
Evidence for baryon acoustic oscillations from galaxy-ellipticity correlations
Kun Xu, Y. P. Jing, Gong-Bo Zhao +1
The Baryon Acoustic Oscillations (BAO) feature in the clustering of galaxies or quasars provides a ``standard ruler" for distance measurements in cosmology. In this work, we report…
Effect of Neutrinos on Angular Momentum of Dark Matter Halo
Yu Chen, Chang-Zhi Lu, Yu Lu +2
Massive neutrinos are expected to affect the large-scale structure formation, including the major component of solid substances, dark matter halos. How halos are influenced by neut…
Cosmological Interpretation for the Stochastic Signal in Pulsar Timing Arrays
Yu-Mei Wu, Zu-Cheng Chen, Qing-Guo Huang
The pulsar timing array (PTA) collaborations have recently reported compelling evidence for the presence of a stochastic signal consistent with a gravitational-wave background. In…
The 21-cm forest as a simultaneous probe of dark matter and cosmic heating history
Yue Shao, Yidong Xu, Yougang Wang +4
The absorption features in spectra of high-redshift background radio sources, caused by hyperfine structure lines of hydrogen atoms in the intervening structures, are known collect…
Probing the equation of state of the early Universe with pulsar timing arrays
Lang Liu, Zu-Cheng Chen, Qing-Guo Huang
The recently released data by pulsar timing array (PTA) collaborations have amassed substantial evidence corroborating the existence of a stochastic signal consistent with a gravit…
Confronting sound speed resonance with pulsar timing arrays
Jia-Heng Jin, Zu-Cheng Chen, Zhu Yi +3
The stochastic signal detected by pulsar timing arrays (PTAs) has raised great interest in understanding its physical origin. Assuming the signal is a cosmological gravitational-wa…
Implications for the non-Gaussianity of curvature perturbation from pulsar timing arrays
Lang Liu, Zu-Cheng Chen, Qing-Guo Huang
The recently released data by pulsar timing array (PTA) collaborations present strong evidence for a stochastic signal consistent with a gravitational-wave background. Assuming thi…
Implications for the Supermassive Black Hole Binaries from the NANOGrav 15-year Data Set
Yan-Chen Bi, Yu-Mei Wu, Zu-Cheng Chen +1
NANOGrav, EPTA, PPTA, and CPTA have announced the evidence for a stochastic signal from their latest data sets. Supermassive black hole binaries (SMBHBs) are supposed to be the mos…
Microlensing bias on the detection of strong lensing gravitational wave
Xikai Shan, Xuechun Chen, Bin Hu +1
Identifying strong lensing gravitational wave (SLGW) events is of utmost importance in astrophysics as we approach the historic first detection of SLGW amidst the growing number of…
Lensing reconstruction from the cosmic microwave background polarization with machine learning
Ye-Peng Yan, Guo-Jian Wang, Si-Yu Li +2
The lensing effect of the cosmic microwave background (CMB) is a powerful tool for our study of the distribution of matter in the universe. Currently, the quadratic estimator (EQ)…
Constraints on peculiar velocity distribution of binary black holes using gravitational waves with GWTC-3
Zhi-Qiang You, Zu-Cheng Chen, Lang Liu +4
Peculiar velocity encodes rich information about the formation, dynamics, evolution, and merging history of binary black holes. In this work, we employ a hierarchical Bayesian mode…