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Cosmological Conductive/Cooling Fronts as Lyman Alpha Forest Clouds | | Andrea Ferrara
; Yuri Shchekinov
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8 May 1996 | | Subject: | astro-ph | | Affiliation: | Arcetri) and Yuri Shchekinov (Rostov University | | Abstract: | We propose a simple model for the origin and evolution of lya clouds based on cosmological conductive/cooling fronts. In this model the lya arises in the interfaces between the IGM and cold clouds that could be tentatively identified with protogalaxies. Most of the properties of the lya absorbers are reproduced with a very restricted number of assumptions. Among these are the correct range of HI column density, cloud sizes and redshift and HI column density distributions for the absorbers. Several predictions and implications of the model are briefly discussed. | | Source: | arXiv, astro-ph/9605034 | | Services: | Forum | Review | PDF | Favorites | |
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