Effective Screening Due to Minihalos during the Epoch of Reionization
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https://doi.org/10.1086/342313Metadata
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Barkana, Rennan, and Abraham Loeb. 2002. “Effective Screening Due to Minihalos during the Epoch of Reionization.” The Astrophysical Journal 578 (1): 1–11. https://doi.org/10.1086/342313.Abstract
We show that the gaseous halos of collapsed objects introduce a substantial cumulative opacity to ionizing radiation, even after the smoothly distributed hydrogen in the intergalactic medium has been fully reionized. This opacity causes a delay of Deltazgreater than or similar to1 in redshift between the time of the overlap of ionized bubbles in the intergalactic medium and the lifting of complete Gunn-Peterson Lyalpha absorption. The minihalos responsible for this screening effect are not resolved by existing numerical simulations of reionization.Terms of Use
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