Baryon Acoustic Oscillations
Bruce A. Bassett (SAAO & UCT), Ren\'ee Hlozek (Oxford)
TL;DR
Baryon Acoustic Oscillations are primordial relics that serve as precise standard rulers for cosmological measurements, with this review summarizing their theoretical, observational, and future survey aspects.
Contribution
This paper provides a comprehensive synthesis of current knowledge on BAO, including theory, observations, and future survey prospects, highlighting their importance in cosmology.
Findings
BAO serve as reliable standard rulers for distance measurement.
Current and future surveys aim to improve BAO observational precision.
BAO physics is grounded in well-understood linear physics.
Abstract
Baryon Acoustic Oscillations (BAO) are frozen relics left over from the pre-decoupling universe. They are the standard rulers of choice for 21st century cosmology, providing distance estimates that are, for the first time, firmly rooted in well-understood, linear physics. This review synthesises current understanding regarding all aspects of BAO cosmology, from the theoretical and statistical to the observational, and includes a map of the future landscape of BAO surveys, both spectroscopic and photometric.
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Taxonomy
TopicsPulsars and Gravitational Waves Research · Astrophysics and Cosmic Phenomena · Radio Astronomy Observations and Technology