Cosmic Reionization on Computers: Evolution of the Flux Power Spectrum

Abstract

We explore the evolution of the flux power spectrum in the Cosmic Reionization On Computers (CROC) simulations. We find that, contrary to some previous studies, the shape of the flux power spectrum is rather insensitive to the timing of reionization. However, the amplitude of the flux power spectrum does strongly evolve with time, and that evolution is almost perfectly correlated with the timing of reionization. We show how such correlation can be used in a (futuristic) measurement to determine the redshift of overlap of ionized bubbles.

Submitted to ApJ

References in corpus (8)

• Cosmic Reionization On Computers I. Design and Calibration of Simulations
• Cosmic Reionization On Computers II. Reionization History and Its Back Reaction on Early Galaxies
• Minor Contribution of Quasars to Ionizing Photon Budget at z~6: Update on Quasar Luminosity Function at the Faint-end with Subaru/Suprime-Cam
• A New Precision Measurement of the Small-Scale Line-of-Sight Power Spectrum of the Ly$\alpha$ Forest
• The effect of inhomogeneous reionisation on the Lyman-$\alpha$ forest power spectrum at redshift $z>4$: implications for thermal parameter recovery
• Impact of inhomogeneous reionization on the Lyman-α forest
• Constraining the Tail-End of Reionization Using Lyman-$\alpha$ Transmission Spikes
• Extracting the astrophysics of reionization from the Ly$\alpha$ forest power spectrum: a first forecast

Cited by in corpus (3)

• The Sherwood-Relics simulations: overview and impact of patchy reionization and pressure smoothing on the intergalactic medium
• Separating the memory of reionization from cosmology in the Ly$\alpha$ forest power spectrum at the post-reionization era
• Lognormal semi-numerical simulations of the Lyman-$\alpha$ forest: comparison with full hydrodynamic simulations