Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 458, Issue 1, Pages L6-L9Publisher
OXFORD UNIV PRESS
DOI: 10.1093/mnrasl/slw007
Keywords
galaxies: high-redshift; dark ages, reionization, first stars; ultraviolet: galaxies
Categories
Funding
- NSF [ACI-1036211, AST-1009781]
- UK Science and Technology Facilities Council
- Direct For Computer & Info Scie & Enginr
- Office of Advanced Cyberinfrastructure (OAC) [1614853] Funding Source: National Science Foundation
- Direct For Computer & Info Scie & Enginr
- Office of Advanced Cyberinfrastructure (OAC) [1036211] Funding Source: National Science Foundation
- Direct For Mathematical & Physical Scien
- Division Of Astronomical Sciences [1009781] Funding Source: National Science Foundation
- Science and Technology Facilities Council [ST/L000733/1, ST/L000652/1] Funding Source: researchfish
- STFC [ST/L000733/1, ST/L000652/1] Funding Source: UKRI
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The Lyman-continuum photon production efficiency (xi(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(xi(ion)/erg(-1) Hz) approximate to 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.
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