3 papers
astro-ph.CO2025
The Impact of the Hubble Tension on the Evidence for Dynamical Dark Energy
Ye-Huang Pang, Xue Zhang, Qing-Guo Huang
Recent findings from the Dark Energy Spectroscopic Instrument (DESI) Data Release 2 (DR2) favor a dynamical dark energy characterized by a phantom crossing feature. This result als…
astro-ph.CO2024
Reevaluating Tension with Non-Planck CMB and DESI BAO Joint Analysis
Ye-Huang Pang, Xue Zhang, Qing-Guo Huang
tension in the spatially flat CDM model is reevaluated by employing three sets of non-Planck CMB data, namely WMAP, WMAP+ACT, and WMAP+SPT, in conjunction with DESI BAO d…
astro-ph.CO2024
Constraints on Redshift-Binned Dark Energy using DESI BAO Data
Ye-Huang Pang, Xue Zhang, Qing-Guo Huang
We parameterize the equation of state of late-time dark energy as , with three redshift bins, characterized by a constant equation of state in each bin. Then,…