Journal article
Properties of reionization-era galaxies from JWST luminosity functions and 21-cm interferometry
J Park, N Gillet, A Mesinger, B Greig
Monthly Notices of the Royal Astronomical Society | OXFORD UNIV PRESS | Published : 2020
Abstract
Upcoming observations will probe the first billion years of our Universe in unprecedented detail. Foremost among these are 21-cm interferometry with the Hydrogen Epoch of Reionization Arrays (HERA) and the Square Kilometre Array (SKA), and high-z galaxy observations with the James Webb Space Telescope (JWST). Here, we quantify how observations from these instruments can be used to constrain the astrophysics of high-z galaxies. We generate several mock JWST luminosity functions (LFs) and SKA1 21-cm power spectra, which are consistent with current observations, but assume different properties for the unseen, ultrafaint galaxies driving the epoch of reionization (EoR). Using only JWST data, we ..
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Awarded by Horizon 2020 Framework Programme
Funding Acknowledgements
We thank R. Bouwens, S. Finkelstein, and P. Oesch for enlightening discussions about approximating JWST LF uncertainties. This project has received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation program (grant agreement no. 638809 - AIDA - PI: Mesinger). The results presented here reflect the authors' views; the ERC is not responsible for their use. The simulations used to generate the mock LFs were computed as part of the PRACE tier-0 grant GAFFER (project no. 2016163945). We acknowledge PRACE for awarding us access to Curie at GENCI@CEA,France.