The Lyman-continuum photon production efficiency in the high-redshift Universe

Abstract

The Lyman Continuum photon production efficiency (${\xi }_{\mathrm{ion}}$) is a critical ingredient for inferring the number of photons available to reionise the intergalactic medium. To estimate the theoretical production efficiency in the high-redshift Universe we couple the BlueTides cosmological hydrodynamical simulation with a range of stellar population synthesis models. We find Lyman Continuum photon production efficiencies of ${\log }_{10}({\xi }_{\mathrm{ion}}/\mathrm{er}{\mathrm{g}}^{-1}\mathrm{Hz})\approx 25.1-25.5$ depending on the choice of stellar population synthesis model. These results are broadly consistent with recent observational constraints at high-redshift though favour a model incorporating the effects of binary evolution

4 pages, 2 figures, accepted to MNRAS. Minor changes reflecting referee comments and community feedback

References in corpus (7)

• The propagation of uncertainties in stellar population synthesis modeling I: The relevance of uncertain aspects of stellar evolution and the IMF to the derived physical properties of galaxies
• UV Luminosity Functions at redshifts z~4 to z~10: 10000 Galaxies from HST Legacy Fields
• Cosmic Reionization and Early Star-Forming Galaxies: A Joint Analysis of New Constraints from Planck and Hubble Space Telescope
• Stellar Population Effects on the Inferred Photon Density at Reionization
• Hubble Frontier Fields First Complete Cluster Data: Faint Galaxies at $z\sim 5-10$ for UV Luminosity Functions and Cosmic Reionization
• New redshift z ~ 9 galaxies in the Hubble Frontier Fields: Implications for early evolution of the UV luminosity density
• The Efficiency of Stellar Reionization: Effects of Rotation, Metallicity, and Initial Mass Function

Cited by in corpus (51)

• Binary Population and Spectral Synthesis Version 2.1: construction, observational verification and new results
• Lyman-alpha and CIII] Emission in z=7-9 Galaxies: Accelerated Reionization Around Luminous Star Forming Systems?
• Conditions for Reionizing the Universe with A Low Galaxy Ionizing Photon Escape Fraction
• ALMA Spectroscopic Survey in the Hubble Ultra Deep Field: The Infrared Excess of UV-selected z=2-10 galaxies as a function of UV-continuum Slope and Stellar Mass
• BPASS predictions for Binary Black-Hole Mergers
• Galaxy Formation and Reionization: Key Unknowns and Expected Breakthroughs by the James Webb Space Telescope
• MMT/MMIRS spectroscopy of $z=1.3-2.4$ extreme [OIII] emitters: Implications for galaxies in the reionization-era
• CEERS Spectroscopic Confirmation of NIRCam-Selected z > 8 Galaxy Candidates with JWST/NIRSpec: Initial Characterization of their Properties
• The MOSDEF Survey: Direct Observational Constraints on the Ionizing Photon Production Efficiency, ${\xi }_{\mathrm{ion}}$, at z~2
• First Light And Reionisation Epoch Simulations (FLARES) I: Environmental Dependence of High-Redshift Galaxy Evolution
• The impact of stars stripped in binaries on the integrated spectra of stellar populations
• The origin of most massive black holes at high-z: BLUETIDES and the next quasar frontier
• Neutron Star Kicks and their Relationship to Supernovae Ejecta Mass
• The ionizing photon production efficiency of compact z~0.3 Lyman continuum leakers and comparison with high redshift galaxies
• Semi-analytic forecasts for JWST -- IV. Implications for cosmic reionization and LyC escape fraction
• The properties of the first galaxies in the BLUETIDES simulation
• Revisiting the Lyman Continuum Escape Crisis: Predictions for z > 6 from Local Galaxies
• First Light And Reionisation Epoch Simulations (FLARES) V: The redshift frontier
• The spectral evolution of the first Galaxies. III. Simulated James Webb Space Telescope spectra of reionization-epoch galaxies with Lyman continuum leakage
• QSO obscuration at high redshift ($z\gtrsim 7$): Predictions from the BlueTides simulation
• Initial Mass Function Variations Cannot Explain the Ionizing Spectrum of Low Metallicity Starbursts
• The contribution from stars stripped in binaries to cosmic reionization of hydrogen and helium
• Semi-analytic forecasts for JWST -- III. Intrinsic production efficiency of Lyman-continuum radiation
• The efficiency of ionising photon production and the radiation energy balance in compact star-forming galaxies
• Optical Line Emission from z$\sim$6.8 Sources with Deep Constraints on Ly$\alpha$ Visibility
• Nebular Line Emission During the Epoch of Reionization
• Cosmic variance of $z>7$ galaxies: Prediction from BlueTides
• Dust Obscured Star Forming Galaxies in the Early Universe
• The Photometric Properties of Galaxies in the Early Universe
• BlueTides simulation: establishing black hole-galaxy relations at high-redshift
• Elevated UV luminosity density at Cosmic Dawn explained by non-evolving, weakly mass-dependent star formation efficiency
• The host galaxies of double compact objects across cosmic time
• Mapping the Escape Fraction of Ionizing Photons Using Resolved Stars: A Much Higher Escape Fraction for NGC 4214
• An Hα Impression of Lyα Galaxies at $z\simeq 6$ with Deep JWST/NIRCam Imaging
• Probing the thermal history during reionization using a semi-numerical photon-conserving code SCRIPT
• Reconstructing the observed ionizing photon production efficiency at z~2 using stellar population models
• The ionizing photon production efficiency of bright z$\sim$2-5 galaxies
• First Light And Reionisation Epoch Simulations (FLARES) VI: The colour evolution of galaxies $z=5-15$
• The early growth of supermassive black holes in cosmological hydrodynamic simulations with constrained Gaussian realizations
• First Light And Reionisation Epoch Simulations (FLARES) XIII: The Lyman-continuum emission of high-redshift galaxies
• HOD modelling of high redshift galaxies using the BLUETIDES simulation
• Binary Fraction Indicators in Resolved Stellar Populations and Supernova Type Ratios
• A machine-learning approach to measuring the escape of ionizing radiation from galaxies in the reionization epoch
• Applications of Stellar Population Synthesis in the Distant Universe
• Is the Bremer Deep Field ionised, at z~7?
• What can distant galaxies teach us about massive stars?
• The Epoch of Reionization in Warm Dark Matter Scenarios
• Sengi: a small, fast, interactive viewer for spectral outputs from stellar population synthesis models
• On the possibility of Baryon Acoustic Oscillation measurements at redshift $z>7.6$ with the Roman Space Telescope
• Constraints on the galaxy formation models during epoch of reionization with high redshift observations
• REBELS-IFU: Spatially Resolved Ionizing Photon Production Efficiencies of 12 Bright Galaxies in the Epoch of Reionization