# Analytic approach to baryon acoustic oscillations

@article{Montanari2011AnalyticAT,
title={Analytic approach to baryon acoustic oscillations},
author={Francesco Montanari and Ruth Durrer},
journal={Physical Review D},
year={2011},
volume={84},
pages={023522}
}
• Published 8 May 2011
• Physics
• Physical Review D
The fitting formula for the location of the first acoustic peak in the matter power spectrum is revised. We discuss the physics that leads to baryon acoustic oscillations: the recombination history, the tight coupling approximation and the velocity overshoot effect. A new fitting formula is proposed, which is in accordance within 5% with numerical results for a suitable range of cosmological parameters, whereas previous results yield deviations of up to 20%. The crucial improvement turns out to…
11 Citations

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