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- W4245274370 abstract "I use cosmological simulations that incorporate an approximation of three-dimensional radiative transfer to investigate the process of the reionization of the universe by ionizing radiation from proto-galaxies. Reionization proceeds in three stages and occupies a large redshift range from $z sim$ 15 until $z sim$ 5. During the first, “re-overlap” stage, H II regions gradually expand into the low density IGM, leaving behind neutral high density protrusions. During the second, “overlap” stage, that occurs in about 10% of the Hubble time, H II regions merge and the ionizing background rises by a large factor. During the third, “post-overlap” stage, remaining high density regions are being gradually ionized as the required ionizing photons are being produced. Residual fluctuations in the ionizing background reach significant (more than 10%) levels for the Lyman-alpha forest absorption systems with column densities above 1014-1015 cm-2 at z = 3 to 4." @default.
- W4245274370 created "2022-05-12" @default.
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- W4245274370 date "2006-02-10" @default.
- W4245274370 modified "2023-10-18" @default.
- W4245274370 title "Cosmological Reionization by Stellar Sources" @default.
- W4245274370 doi "https://doi.org/10.1007/10719504_39" @default.
- W4245274370 hasPublicationYear "2006" @default.
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