Observable Properties of Cosmological Reionization Sources
نویسندگان
چکیده
منابع مشابه
Se p 20 03 Observable Properties of Cosmological Reionization Sources
Motivated by recent evidence that the epoch of reionization of hydrogen may have ended at a redshift as low as z ≈ 6, we consider the detectability of the sources responsible for this reionization. The main idea is that reionization places limits on the mean surface brightness of the population of reionization sources. Reducing the number of model-dependent assumptions to a minimum, we discuss ...
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I use cosmological simulations that incorporate a physically motivated approximation to three-dimensional radiative transfer that recovers correct asymptotic ionization front propagation speeds for some cosmologically relevant density distributions to investigate the process of the reionization of the universe by ionizing radiation from proto-galaxies. Reionization proceeds in three stages and ...
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In Loeb & Rybicki (1999; paper I) it was shown that before reionization, the scattering of Lyα photons from a cosmological source might lead to a fairly compact (∼ 15) Lyα halo around the source. Observations of such halos could constrain the properties of the neutral intergalactic medium (IGM), and in particular yield the cosmological density parameters of baryons and matter on scales where th...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2004
ISSN: 0004-637X,1538-4357
DOI: 10.1086/380110