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6 papers · 1 filter
Testing the cosmological principle with quasars
Shuangnan Chen, Xiaofeng Yang, Yunliang Ren +5
The inferred velocity is consistent at the 1.56 σ level with the value of 370 km/s from a purely kinematic interpretation of the CMB dipole. Based on the motion direction component…
Cosmological Constraints on the Phenomenological Interacting Dark Energy Model with Fermi Gamma-Ray Bursts and DESI DR2
Ziyan Zhu, Qingquan Jiang, Yu Liu +2
In this work, we constrain the phenomenological interacting dark energy (IDE) model using \emph{Fermi} gamma-ray burst (GRB) dataset and the latest baryon acoustic oscillation (BAO…
Holographic dark energy in a coasting cosmology
Yunliang Ren, Xiaofeng Yang, Xuwei Zhang +5
Coasting cosmology offers an intriguing and straightforward framework for understanding the universe. In this work, we employ the Trans-Planckian Censorship Criterion (TCC) conject…
Testing Cosmic Distance Duality Relation and Transparency with DESI DR2
Xuwei Zhang, Xiaofeng Yang, Yunliang Ren +5
The Cosmic Distance Duality Relation (CDDR) is a fundamental principle of standard cosmology, linking luminosity (LD) and angular diameter distances (ADD). This work investigates t…
A measure of cosmological distance using the \civ\ Baldwin effect in quasars
L. Huang, H. Wang, Z. F. Gao +2
We use the anticorrelation between the equivalent width (EW) of the C\,\textsc{iv} 1549 Å emission line and the continuum luminosity in the quasars rest frame (Baldwin effect) to m…
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…