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
19 papers · 2 filters
Cosmic Dynamics in Einstein-Cartan Theory: Analysing Hubble Tension through Curvature and Torsion field
Yun-Dong Wu, Wei Hong, Tong-Jie Zhang
The Hubble tension refers to the significant discrepancy in the Hubble constant obtained from two different measurement methods in cosmology. One method derives data from t…
Modelling the covariance matrix for the power spectra before and after the BAO reconstruction
Ruiyang Zhao, Kazuya Koyama, Yuting Wang +1
The baryon acoustic oscillation (BAO) reconstruction plays a crucial role in cosmological analysis for spectroscopic galaxy surveys because it can make the density field effectivel…
Cooling rate and turbulence in the intracluster medium of the cool-core cluster Abell 2667
M. Lepore, C. Pinto, P. Tozzi +8
We present a detailed analysis of the thermal X-ray emission from the intracluster medium (ICM) in the cool-core galaxy cluster Abell 2667 (). Our goal is to detect low-tem…
Estimating Cosmological Parameters and Reconstructing Hubble Constant with Artificial Neural Networks: A Test with covariance matrix and mock H(z)
Jie-feng Chen, Tong-Jie Zhang, Peng He +2
In this work, we reconstruct the H(z) based on observational Hubble data with Artificial Neural Network, then estimate the cosmological parameters and the Hubble constant. The trai…
Explanation of high redshift luminous galaxies from JWST by early dark energy model
Jun-Qian Jiang, Weiyang Liu, Hu Zhan +1
Recent observations from the James Webb Space Telescope (JWST) have uncovered massive galaxies at high redshifts, with their abundance significantly surpassing expectations. This f…
Search for a Gravitational-Wave Background from Sound Speed Resonance from Advanced LIGO and Advanced Virgo's First Three Observing Runs
You Wu, Zu-Cheng Chen, Lang Liu
We search for a stochastic gravitational-wave background (SGWB) originating from scalar-induced gravitational waves (SIGWs) with the sound speed resonance (SSR) effect using data f…
An Independent Measure of the Kinematic Dipole from SDSS
Prabhakar Tiwari, Dominik J. Schwarz, Gong-Bo Zhao +3
We utilize the Sloan Digital Sky Survey (SDSS) extended Baryon Oscillation Spectroscopic Survey (eBOSS) and Baryon Oscillation Spectroscopic Survey (BOSS) catalogs with precise spe…
Constraints on Primordial Magnetic Fields from High Redshift Stellar Mass Density
Qile Zhang, Shang Li, Xiu-Hui Tan +1
Primordial magnetic fields (PMFs) play a pivotal role in influencing small-scale fluctuations within the primordial density field, thereby enhancing the matter power spectrum withi…
Hints of Nonminimally Coupled Gravity in DESI 2024 Baryon Acoustic Oscillation Measurements
Gen Ye, Matteo Martinelli, Bin Hu +1
The cosmic microwave background (CMB) and baryon acoustic oscillations (BAO) are two of the most robust observations in cosmology. The recent BAO measurements from the DESI collabo…
Forecast of strongly lensed supernovae rates in the China Space Station Telescope surveys
Jiang Dong, Yiping Shu, Guoliang Li +3
Strong gravitationally lensed supernovae (SNe) are a powerful probe for cosmology and stellar physics. The relative time delays between lensed SN images provide an independent way…
The XMM-SERVS X-ray eXtended Galaxy Cluster (XVXGC) catalog
Weiwei Xu, Linhua Jiang, Ran Li +4
To explain the well-known tension between cosmological parameter constraints obtained from the primary CMB and those drawn from galaxy cluster samples, we propose a possible explan…
FREmu: Power Spectrum Emulator for Gravity
Jiachen Bai, Junqing Xia
To investigate gravity in the non-linear regime of cosmic structure using measurements from Stage-IV surveys, it is imperative to accurately compute large-scale structure observabl…
Model-independent way to determine the Hubble constant and the curvature from phase shift of gravitational waves with DECIGO
Tonghua Liu, Shuo Cao, Marek Biesiada +2
In this Letter, we propose a model-independent method to determine the Hubble constant and curvature simultaneously taking advantage of the possibilities of future space-borne grav…
Enhancing Primordial B-mode Detection: Comprehensive Delensing Pipelines for Improved Sensitivity to
Wen-Zheng Chen, Yang Liu, Siyu Li +2
Recognizing the impact of contamination from weak gravitational lensing B-modes induced by Large Scale Structure, we examine delensing methods to enhance sensitivity to the tensor-…
Tensor bispectrum mediated by an excited scalar field during inflation
Zhi-Zhang Peng, Cheng-Jun Fang, Zong-Kuan Guo
We calculate the tensor bispectrum mediated by an excited scalar field during inflation and find that the bispectrum peaks in the squeezed configuration, which is different from th…
Can we distinguish the adiabatic fluctuations and isocurvature fluctuations with pulsar timing arrays?
Zu-Cheng Chen, Lang Liu
Understanding the nature of primordial fluctuations is pivotal to unraveling the Universe's early evolution. While these fluctuations are observed to be nearly scale-invariant, qua…
Can Early Dark Energy be Probed by the High-Redshift Galaxy Abundance?
Weiyang Liu, Hu Zhan, Yan Gong +1
The analysis of the Cosmic Microwave Background (CMB) data acquired by the Atacama Cosmology Telescope (ACT) and the large-scale () Planck Telescope show a prefer…
NANOGrav hints for first-order confinement-deconfinement phase transition in different QCD-matter scenarios
Zu-Cheng Chen, Shou-Long Li, Puxun Wu +1
Recent observations from several pulsar timing array (PTA) collaborations have unveiled compelling evidence for a stochastic signal in the nanohertz band. This signal aligns remark…
Multiple measurements on the cosmic curvature using Gaussian process regression without calibration and a cosmological model
Xiaolong Gong, Yifei Xu, Tonghua Liu +4
In this letter, we propose an improved cosmological model-independent method to measure cosmic curvature, combining the recent measurements of transverse and line-of-sight directio…