GRBs versus Quasars: Lyman-α Signatures of Reionization versus Cosmological Infall
نویسنده
چکیده
Lyman-α absorption is a prominent cosmological tool for probing both galactic halos and the intergalactic medium at high redshift. We consider a variety of sources that can be used as the Lyman-α emitters for this purpose. Among these sources, we argue that quasars are the best probes of the evolution of massive halos, while γ-ray bursts represent the cleanest sources for studying the reionization of the intergalactic medium.
منابع مشابه
Gamma-ray Bursts versus Quasars: Lyman-α Signatures of Reionization versus Cosmological Infall
Lyman-α absorption is a prominent cosmological tool for probing both galactic halos and the intergalactic medium at high redshift. We consider a variety of sources that can be used as the Lyman-α emitters for this purpose. Among these sources, we argue that quasars are the best probes of the evolution of massive halos, while γ-ray bursts represent the cleanest sources for studying the reionizat...
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تاریخ انتشار 2003