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DUST FORMATION IN DAMPED LY\alpha SYSTEMS

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A one-zone spectrophotometric and chemical evolution scenario of spiral galaxies incorporating dust formation is briefly described, and a self-consistent closed box chemical model of the gaseous disks (corrected on dust depletion) is presented. Comparison of the calculated abundances with the observed in damped Lyα systems shows first, that at least a fraction of DLA absorptions can be attributed to spiral galaxies, and that the dust is a nessasary physical ingredient of galaxy evolution model strongly affecting the observed abundance pattern and photometric properties.
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Keywords: Galaxies: chemo-spectrophotometric evolution of spiral galaxies, dust evolution; Quasars: damped Lyα systems

Document Type: Research Article

Affiliations: Department of Physics, Rostov State University, Rostov on Don, 344090, Russia

Publication date: 2002-01-01

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