The Cosmological Parameters (2025)
Marina Cort\^es, Ofer Lahav, Andrew R Liddle
TL;DR
This review summarizes the state of knowledge on cosmological parameters as of late 2025, covering parametrizations, model extensions, observational probes, data synthesis, and future prospects.
Contribution
It provides a comprehensive, up-to-date synthesis of cosmological parameters and methodologies, serving as a key reference for researchers in the field.
Findings
Updated constraints on cosmological parameters
Overview of observational probes and their effectiveness
Future outlook for cosmological research
Abstract
This is a review article for The Review of Particle Physics 2026 (aka the Particle Data Book), appearing as Chapter 25. It forms a compact review of knowledge of the cosmological parameters near the end of 2025. Topics included are Parametrizing the Universe; Extensions to the standard model; Probes; Bringing observations together; Outlook for the future.
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Taxonomy
TopicsCosmology and Gravitation Theories · Astrophysics and Cosmic Phenomena · Astronomy and Astrophysical Research