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

Wilkins, Stephen M, Feng, Yu, Di-Matteo, Tiziana, Croft, Rupert, Stanway, Elizabeth R, Bouwens, Rychard J and Thomas, Peter (2016) The Lyman-continuum photon production efficiency in the high-redshift universe. Monthly Notices of the Royal Astronomical Society: Letters, 458 (1). L6-L9. ISSN 1745-3925

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Abstract

The Lyman-continuum photon production efficiency (ξion) is a critical ingredient for inferring the number of photons available to reionize 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 log10(ξion/erg−1 Hz) ≈ 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.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Depositing User: Stephen Wilkins
Date Deposited: 18 Mar 2016 08:46
Last Modified: 22 Jan 2018 12:28
URI: http://sro.sussex.ac.uk/id/eprint/60081
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