Constraining Universe Expansion with Future Galaxy Surveys
Published:Dec 28, 2025 15:12
•1 min read
•ArXiv
Analysis
This paper proposes using next-generation spectroscopic galaxy surveys to improve the precision of measuring the Hubble parameter, addressing the tension in Hubble constant measurements and probing dark matter/energy. It highlights the limitations of current methods and the potential of future surveys to provide model-independent constraints on the Universe's expansion history.
Key Takeaways
Reference
“The cosmic chronometers (CC) method offers a unique opportunity to directly measure the Hubble parameter $H(z)$ without relying on any cosmological model assumptions or integrated distance measurements.”