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The Lyman-continuum photon production efficiency in the high-redshift universe
journal contributionposted on 2023-06-09, 00:36 authored by Stephen M Wilkins, Yu Feng, Tiziana Di-Matteo, Rupert Croft, Elizabeth R Stanway, Rychard J Bouwens, Peter ThomasPeter Thomas
The Lyman-continuum photon production efficiency (?ion) 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(?ion/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.
JournalMonthly Notices of the Royal Astronomical Society: Letters
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