Cosmological constraints on early dark energy from the full shape analysis of eBOSS DR16

Understand

We evaluate the effectiveness of Early Dark Energy (EDE) in addressing the Hubble tension using data from the completed eBOSS survey, focusing on luminous red galaxies (LRGs), quasars (QSOs), and emission line galaxies (ELGs).

• We perform cosmological parameter measurements based on full shape analysis of the power spectrum of all three tracers.
• We conduct this full shape analysis with the effective field theory of large-scale structure (EFTofLSS).
• EDE is known to strongly suffer from volume projection effects, which makes the interpretation of cosmological constraints challenging.