Lyα Absorption Systems and the Intergalactic Medium
نویسنده
چکیده
The last few years have seen a dramatic improvement in our understanding of the origin of Lyman α absorption systems. Hydrodynamic numerical simulations of cold dark matter dominated universes have shown that the many properties of the Lyman α absorption systems can be explained by a photoionized, space-filling, intergalactic medium. Lyman α lines offer promising probes of the photoionizing background, the amplitude of the mass fluctuations at high redshift and the evolution of the equation of state of the intergalactic medium.
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تاریخ انتشار 2000